A perfect blend of high-concept science fiction and soaring humanity. The idea of the fullness of life encapsulated in a continuously repeating eight minutes is crucial to the success of Source Code, and Duncan Jones has beautifully portrayed this time-spanning arc with so much emotion. A mission to save lives on an exploded train before the attack happens transforms into a quest to preserve life itself. Jake Gyllenhaal is solid as the lead but it's Michelle Monaghan who's cast to perfection. She's truly captivating in her role as the love interest, Stevens' one true means of escape from a cycle and the source of hope and optimism in Source Code.