Source Code is a clever thriller, that toys with its sci-fi elements without ever becoming too much of a geekout. It has an interesting premise that might be familiar, but not so familiar that it’s boring already. Jake Gyllenhaal is brilliant in the lead role, exactly the right actor for this part, showing us the confusion we would expect but also the determination to get out of it without becoming a cleancut hero. He makes mistakes and overreacts at times, making him all the more believable. The movie has fun with its premise and the direction and screenplay constantly keeps up the suspense and surprises.