"I will say that 'Source Code' proved to be a very tricky film to shoot." — Michelle Monaghan

I was just fascinated with how everyone else in the world lived, and I was interested in telling their story.

I come from a very working class background. My dad worked in a factory for 40 years. We all put ourselves through school.

It's an interesting opportunity to do a long-form character and really have the time to find the nuance over an extended period of time. You can really dig deep.

As much as I can and am able to, with the projects that are presented to me, I try to just really choose things that are challenging and are something I haven't tackled before.