Inception

Leonardo DiCaprio and Ellen Page.  Leo is a (oh jeez this is hard)...he goes in people's minds and reads their dreams.  And he ends up in one of Ellen Page's dreams.  It seems really real, he's in her dream.  They're on this journey together and people are trying to kill her.  He has to save her.  And then in the middle it's a lot of action like the Bourne Identity where he's a bad ass.  And then someone tries to come in and steal her dream.  I bet it's real confusing at this part.  Then at the end they realize it's just a dream and you're left to ponder what's real.