Coherence

I greatly enjoyed this film, despite having seeing it as a silly teen drama at SXSW a few months ago.  This time, though, the theme is wrapped into a legitimate sci-fi puzzler.  As a comet passes near Earth, reality shifts, throwing a dinner party into disarray.  That house down the block still has its light on - and wow, doesn't it look eerily familiar?

Here it is, the sci fi film of 2013.  Filmed with minimal script - just a note card with motivations - the actors didn't even know it was a sci fi film until days into shooting.  This shows what an excellent job you can do with a brilliant script, good actors, and - nothing else.

Coherence
2013, 89 minutes, directed by James Ward Byrkit