> I think that we won't get good results until film projection is dead, and directors and DPs can present at arbitrary frame rates -- there's no reason that, given a digital projection, a movie couldn't use 48 (or 60!) for certain sequences, while retaining 24 (or 30) for others.
Even with film projection, as long as the higher rate is an integer multiple of the lower, it should be trivial to have the same effect as long as you have camera equipment that lets you shoot at the desired rates.
Yeah, I guess, although it makes for the possibility of broken cadences, which is everybody's least favorite thing ever. I imagine that this isn't going to happen until film is dead as a presentation medium for a variety of reasons (tooling, as you note).
Even with film projection, as long as the higher rate is an integer multiple of the lower, it should be trivial to have the same effect as long as you have camera equipment that lets you shoot at the desired rates.