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AMIRA Live on multi-camera courtroom drama

Cinematographer Guido Frenzel used the ARRI Multicam System to give a live production feel to a new adaptation of the Holocaust trial play, “Die Ermittlung. Oratorium in elf Gesängen.”

Jul. 25, 2024

“Die Ermittlung. Oratorium in elf Gesängen” (“The Investigation”) is a 1965 play by German playwright Peter Weiss, dramatizing the 1963-65 Frankfurt Auschwitz trial through documentary theater. Using the musical structure of a multi-chaptered oratorio, it gives voice to survivors and exposes the lack of contrition of defendants, who all played active roles at the largest of the Nazi concentration and death camps. This year sees the release of a new filmed adaption, directed by RP Kahl and shot by cinematographer Guido Frenzel, who is interviewed below. The multi-camera package supplied by ARRI Rental included AMIRA Live cameras, which form part of the ARRI Multicam System and ARRI’s wider offerings for live entertainment productions.

The feature film “The Investigation” was shot with ARRI cameras designed for live entertainment productions

The feature film “The Investigation” was shot with ARRI cameras designed for live entertainment productions

Mr. Frenzel, what conversations did you have with RP Kahl about how to approach the shoot?

When the producer Alexander Van Dülmen first contacted me, it quickly became clear that this project would be a hybrid of different production methods, with elements of cinema, theater, and broadcast television. Our production team had an intriguing mix of professional backgrounds. Director RP Kahl mainly comes from cinema, our production designer Nina Peller often works in theater, and our costume designer Tina Kloempken has extensive experience in opera. My own background is a mix of cinema and multi-camera live TV productions. When I discussed the project with RP Kahl we decided on a “live-to-tape” approach, filming on a TV soundstage at Studio Berlin with multiple cameras and 360-degree coverage of the action.

How did you decide on the look of the film? What were your references?

The design of the set was more an abstraction of a courtroom, since we wanted to stay away from a historical depiction of the trials, as you would see in a period piece. There are some subtle hints of the 1960s through the choice of wardrobe, but generally it was more of a timeless space, which in my opinion makes it more relevant to the now. We tried to bring in a subtle fluidity to the very static setup of a courtroom by using four mobile cameras that added some movement: a Steadicam, a Technocrane, a dolly camera, and a movable PED cam (pedestal camera) to get different angles.  
 
In terms of lighting, we relied on automated fixtures used for live TV shows, theatrical performances, and concerts. We worked with our lighting designer Peer Langemak to create different moods for each chapter and occasionally dynamic light changes during a scene as well. As far as references go, we looked at Gerhard Richter’s Birkenau paintings, which are a good starting point for exploring how to approach any artistic representation of something as horrific as the Holocaust. For me personally, Jacob Ihre’s use of what I would call “unpleasant” color on the HBO miniseries “Chernobyl” was something I kept circling back to.

Why did you decide on the AMIRA Live for this project and how did you use it?

ARRI cameras were my first choice for this project because I feel that ARRI’s sensors generally have the most beautiful reproduction of faces and a large part of the film plays just in our actors’ close-ups. Since we were embedded in a live TV production workflow, the AMIRA Live was an obvious choice for this film. The ALEXA 35 Live had not been released at that time, but I’m glad that ARRI is continuing to develop this equipment segment. 
 
In total we had six AMIRA Live cameras and two ALEXA Minis. We used the full 3.2K sensor area on the AMIRAs and recorded ProRes 4444 LogC in-camera. Our proxies were made daily on set in DNxHD 120. All eight cameras were always recording simultaneously and we were overseeing them from the built-in control room at Studio Berlin. We received an HD signal from all cameras and were also recording a line cut, so we could immediately see how our coverage was working out. RP Kahl was present on stage with a multi-viewer so he could be close to the actors, while I was focused on camera direction in the control room.

ARRI cameras were my first choice for this project because I feel that ARRI’s sensors generally have the most beautiful reproduction of faces (...) Since we were embedded in a live TV production workflow, the AMIRA Live was an obvious choice for this film.

Guido Frenzel

Cinematographer

Were you controlling any image parameters remotely, as you would on a live broadcast?

The great advantage of the AMIRA Live is that you have full access to the cameras from the control room, where our engineer Thomas Funda was overseeing the video control. We received an HD 422 LogC signal from the cameras on stage and used an AJA FS-HDR to convert to Rec 709 for our line cut. Thomas was able to make the look adjustments on the fly for our HD monitoring, according to my requests. I prefer not to use a LUT with this many cameras, because I think staying in Rec 709 viewing is a cleaner way to judge all the technical challenges when shooting so many different angles simultaneously. For the editing room I provided a LUT from the ARRI Look Library so they would get used to seeing the footage with a look that approximated our final grade. We were also able to give the operators tally and return signals, which is a great help when shooting in a multi-camera environment.

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Using the AMIRA Live, the filmmakers had full access to the cameras from the control room

How tight was your shooting schedule?

We only had five shooting days. Typically, we would shoot three takes of one chapter in the morning, and then three takes of another in the afternoon. Each take was around 15 to 30 minutes non-stop, which was a tremendous challenge for the actors and the entire team. To prepare for it, RP and I had made a very detailed camera coverage plan, which we rehearsed with the actors and technical team in the week leading up to our shoot. It is quite a different task to plan for eight cameras versus the typical two-camera coverage of a conventional feature. I sat down for two mornings during our rehearsal week just to communicate the coverage plan to the camera operators. Since I live and work mostly in the US, this was my first collaboration with the camera crew in Germany and I’m very grateful for how much creativity and professionalism they all brought to the project.

What kinds of things were in the camera coverage plan you devised?

The camera choreography was very important because we had to get all shots covered in very few takes. As an example, we had to decide beforehand when the Steadicam would cover dialogue up close on stage, because that could prevent the other cameras from getting their shots at the same time. Everyone knew that each take counted fully; being reduced to only three takes would be unthinkable on a traditional feature film. But the live aspect brings everyone to the highest level of concentration, both in front of and behind the camera.

What lenses did you use and why?

I had the pleasure to work with Christian Hilgart from ARRI Rental Cologne when we put together the lens package. He was able to source three Fujinon Duvo zoom lenses and I believe we might have been one of the first productions in Germany to shoot with the 25-1000 mm, which is a fantastically well-engineered box lens that gave our close-up cameras the needed reach and at the same time absolutely beautiful images. The other lens choices were mainly dictated by the required zoom range of each camera’s coverage. I was particularly happy with the ARRI/Zeiss 16.5-110 mm T2.6 Master Zoom. It is quite heavy, but very fast and the picture looks great! We also used an Angénieux Optimo 24-290 mm, a Fujinon Premier 75-400 mm, and a Fujinon XK 20-120 mm.

How was the grading process?

Cinema grading was done at DeFacto Post in Germany and I flew back to Berlin from LA to work with lead colorist Claudia Gittel and colorist Anis Fedaoui. They worked in ACES to keep the option for an eventual HDR version open. Claudia was able to match the eight cameras very well despite the varied lens parameters and was a great partner to refine the different color moods in the look we were after.  

This film was a rare opportunity to bring some of the modern camera and lighting technology we are used to from variety TV productions or concert films into a scripted environment. 

Guido Frenzel

Cinematographer

Looking back, are you pleased with your shooting and workflow choices?

This film was a rare opportunity to bring some of the modern camera and lighting technology we are used to from variety TV productions or concert films into a scripted environment. The AMIRA Live was a key element of this technology and I feel our technical and creative concept was the right choice to keep the important witness accounts of Auschwitz alive, especially today, when most survivors have passed away and knowledge about this history is more relevant than ever. 

Swipe through behind-the-scenes images of "The Investigation"

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Using the AMIRA Live, the filmmakers had full access to the cameras from the control room
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