API Changes, spez, etc. You know the drill. We'll be back when other people are coming back online. Go watch some movies in the meantime. For more information see /r/ModCoord.
Not necessarily underrated or underappreciated. For instance I wouldn't necessarily call Coherence a forgotten film, it's rather well known on Reddit at least.
Black and white or in color is fine.
Animated, stop-motion, or live-action is fine.
Non English speaking movies is fine.