There ought to be a law—OK, perhaps a rule—that forbids Mountain, a film of truly epic dimension, from being watched on a small screen. To be honest, it really doesn't matter much how or where most contemporary films are screened. Even this summer's massively proportioned Avengers: Infinity War will undoubtedly land on a streaming platform where millions of viewers will see the bloated mess on their laptops. But Mountain, an eye-popping cinematic and musical collaboration which sweeps across the planet's most awesome landscapes, begs a theater-sized screen. It's a spellbinding masterpiece from director Jennifer Peedom (Sherpa) and features the magisterial sound of the Australian Chamber Orchestra, including the works of Chopin, Vivaldi and Beethoven. It's not be missed.