Alright, I saw this movie like 5 years ago and I can't remember the name of it, and now it's really bugging me. All I can remember, was basically a bunch of people fell asleep on a plane while it was flying somewhere, and they woke up in some weird planet place, all the people that didn't fall asleep on the plane disappeared (or something). They landed and explored this building where a bunch of people got hurt... They were trying to get Then they barely got away from the place and flew back to earth by getting everyone to fall asleep accept the captain and got back home. It ended with them getting home but nobody was there, it was like a big empty city...

Sorry, that's all I really remember.