I enjoyed Duncan Jones’ Moon, a film that treated science with respect and told an unusual story; after seeing the high reviews for Source Code, I took the plunge.
It’s a fantastic movie – fast-paced and intelligent; there’s action (and romance), but the focus is on the protagonist making sense of his situation. Despite apparent technobabble, like Inception, the science of the movie is critical to the story. There are a few satisfying twists, and a happy ending.
I really loved Source Code, and recommend it highly.