Just confirmed via the marvellous media of the Tweet, from Source Code Director Duncan Jones:

Have a bloody fantastic bit of Source Code news. Super star Clint Mansell WILL be scoring the film. You have no idea how relieved I am.

Consider anticipation for Source Code cranked up a good few notches (and it was high enough already). Absolutely fantastic news, that we have all been eagerly awaiting.

WOOOO and a HOOOOOOOOOOOO 🙂