
Originally Posted by
Marc Wielage
Rocky was a very modest-budget ($1.1M) movie that won 3 Oscars and made $220,000,000. I think we can assume it's future-proof in that it's an iconic movie that will be known for many decades to come, just like Godfather, Jaws, Star Wars, and many other culture-changing 1970s movies.
All movies show on film have a degree of grain and noise. In particular, during the 1970s, film stocks were grainy, Kodak was going through a period of experimentation (including some very bad, unstable negative stock and intermediate stock), and it's the way things are. Hey, I guarantee you, 1976 videotape looks 1000 times worse. Great mastering and archival restoration can reduce or even eliminate grain to the point where it's not a factor, but the studios have to want to spend the necessary time and money to make that happen.
Future-proofing to me is more about popular culture. People aren't gonna care about the "K" -- they're gonna care about stories, characters, direction, and to some degree, the technical elements like lighting, editing, and color-correction. Blockbuster movies like Avengers ain't gonna vanish 20 years ago solely because they're not in 4K.
The Epic (and Scarlet) are perfectly valid tools, as is the Alexa, the Sony F65, and even the (not-yet-released) Canon C500. I bet in the right hands, they'll all make acceptable pictures for the o.p.'s project. To a producer, I'm not sure there's any valid reason to choose one camera over another except cost, time, and the preference by the DP.
My advice: shoot some camera tests with both, project them in a great room, and see what the director thinks. I know of a case with a major $200M film coming out this summer where the director (a former DP) did his own shoot-out with 5 digital cameras. Film won out, but the Alexa was a very, very close second. And the director was picking images without knowing what they were -- it was a "blind" test as far as what camera made what image. He didn't care about the technology at all; he only cared about the pictures.