It shouldn't be difficult to convert a movie shot on this film to digital, so here's what I'd do: Let Chris Nolan (or whoever's interested) shoot a movie on it, then convert it to digital. Next, do some A/B testing. Select a smallish number of theatres in major markets who would be showing his film on multiple screens and install the needed projectors in one of them. Advertise the choice in those theatres only, and see what happens. If the director likes it, they'll probably talk about it in the press, so that's free advertising right there. If the experience really is that much better, you should see higher viewership for the MaxiVision screenings. After that, it's an easy sell to the studio execs. In all, they spend a trivial amount of money to do some A/B testing and get usable results.
Granted, the studios are conservative and often myopic or flat-out wrong (3d), but even they shouldn't have too much trouble seeing whether it's a good (cheap) investment or not.