Restoring Martin Scorsese's Taxi Driver in Sony 4K Digital Cinema
COW Library : Cinematography : Debra Kaufman : Restoring Martin Scorsese's Taxi Driver in Sony 4K Digital Cinema
The idea for a 4K restoration arose when the studio began to prepare for a Blu-ray release. "We already knew the older HD transfer would not hold up," says Crisp. "This is an important film in the Columbia Pictures library, so we felt it deserved the highest level of work."
The workflow was simplified by the fact that Colorworks, a DI facility on the Sony lot in Culver City, was built from the ground-up with a complete 4K infrastructure including color grading systems Baselight 8 and 4 from FilmLight. The facility and its 4K capabilities have been integral to Sony's re-mastering and restoration work.
"For some time, we have been scanning everything that we work on at 4K, regardless of whether it is a big restoration project or if we just need to re-master the film for Blu-ray," says Crisp. "The 4K is essentially the resolution of 35mm film negative, but even when scanning second or third generation elements, we still start with a 4K scan."
Prior to the restoration, the original negative had been stored in a state-of-the-art vaulting facility, cold and humidity-controlled to IPI specs. "For a film of this vintage, the negative was in average condition," says Crisp. "It had some torn sections, which fortunately had not been replaced at any time, and numerous scratches, plus the usual amount of dirt embedded in the emulsion. It was slightly faded but not so much that we couldn't bring the color back in digitally." Colorworks DI artist Scott Ostrowsky agrees with the assessment. "Besides the dirt, tears and scratches, there was a little bit of color fading and a little bit of color breathing," he notes.
The ONEG (original negative) was scanned at Cineric, a restoration and preservation facility in New York using a specially designed wetgate 4K scanner. The resulting DPX files exist on the SAN, but they were moved across the country to Colorworks on LTO data tape. "4K is a lot of data to move around and to hold on servers," explains Crisp. "But we have not encountered any problems in moving data in and out."
One of the 4K DI suites at Colorworks, located on the Sony lot in Culver City, California.
COLOR GRADING THE RESTORED "TAXI DRIVER"For those worried that the digitally re-mastered Taxi Driver will deviate from the look of the original, nothing could be further from the truth. In fact, for fans familiar with Taxi Driver from videocassette or DVD versions, the new version is likely to be a revelation… and a return to the film's original look. "There are a number of places in the film that will look quite different from other video releases," says Crisp.
From left, Billie Perkins, Jodie Foster and DeNiro.
"We discovered in looking at answer prints and working with Chapman that the last time the film was transferred was about ten years ago, unsupervised and with no talent involvement," he adds. "The old transfer, used for the DVDs over the years, really missed the boat in a number of ways. It was too bright in places and some scenes were just wrong. There was a preponderance of cyan throughout a number of scenes. Also, the framing was unfortunately not accurate, with some key shots zoomed in to avoid issues related to splices and we properly framed those scenes."
Colorworks DI artist Scott Ostrowsky, who had worked on an earlier HD master of the title, says that working with the original negative was both "a blessing and a curse." "It gives you the best possible palette to work with," he says. "But there's no timing with the ONEG -- you're creating that." The basis for his color correction was an approved answer print, which he saw prior to starting color correction. "I took notes and matched to it as closely as possible," he says.
Robert DeNiro, new attitude intact, in a scene from 'Taxi Driver'.
Ostrowsky's color correction unearthed other problems that had arisen, including timing issues and optical dissolves. "In a photochemical print, you don't have as much leeway if, for example, they used a B stock at some point," he says. "The entire end scene, coming out of the killings, is all dissolves. It's almost like a montage where it goes from Travis Bickle to the streets, to the police, to the apartment. Going from the ONEG helps you balance that out better."
He notes that the entire last scene in the apartment was an optical. "When they showed the film to the ratings board originally, it got an X rating because of all the blood in that scene," says Ostrowsky. "They went to a lab that did a Chemtone process that gave it a desaturated look." Although today's films don't shy away from showing blood, the 4K version of Taxi Driver features that same desaturation. "We kept it the same," says Ostrowsky. "Michael [Chapman] did not want to change it and we kept true to what the print looked like."
Leonard Harris as Charles Palantine in Martin Scorsese's "Taxi Driver".
Colorworks uses FilmLight's Baselight 8 and Baselight 4 for its color grading; Ostrowsky used the Baselight 8 for Taxi Driver. "It gives the colorist a wide array of choices and we can even do some cleanup on the fly," says Crisp. The Baselight 8 contains 98 terabytes of internal storage, making it the ideal tool for color correcting in 4K.
"The processing powers of the Baselight 8 and Baselight 4 are essentially the same, but because of the greater storage, the 8 is a little faster," says Ostrowsky. "With the Baselight 8, I can do numerous keys and windows on images with many layers and it doesn't slow down at all." Ostrowsky also notes that the Baselight 8 offers a robust toolset. "It has printer lights, its own set of secondaries and a hue-angle layer," he says. "It has keyers and windows…everything you could possibly want."
The Baselight 8 nonlinear color grading system from Filmlight. Dedicated hardware, including 96TB of internal storage, allows realtime playback and grading of multiple streams of 4K.
When the color correction got to a certain point, cinematographer Michael Chapman came in. "I worked with Scott to get it to a point where we could have Michael come in and be close enough that he could weigh-in more efficiently for his time," says Crisp. "We were pretty close, but he made a few changes here and there, mostly density and a bit of color and that was it."
Scorsese saw the 4K files after the initial pass for digital restoration while he was in London shooting Hugo Cabret. "He came into the Sony Pictures screening room which is one of the few places in London where you can see 4K," says Crisp. "He had some comments on framing and color, all good points, which we addressed back at Colorworks."
The "Taxi Driver" 4K restoration was done by the same team responsible for the Sony Pictures Entertainment Bluray release of "Bridge on the River Kwai," also released from the restored 4K masters. Above: Alec Guinness.