Screen Crush: Some of the best films often leave us scratching our heads at their conclusions, inspiring hours of debate with friends over what really happened after the credits rolled. Was Patrick Bateman really a killer? Was 'Inception' all just a dream? Is anyone ever okay at the end of Darren Aronofsky's films? (Spoiler: No. Just no.) We've gathered 14 great films with ambiguous endings to get you contemplating them all over again.