The ending had me questioning some things, but I accepted most of it pretty well. The rules of the movie allow me to believe that the Source Code machine can create alternate universes. And even if not, his brain is stuck in an alternate timeline, where he'll be eternally happy. Not a bad way to go.
That's what I like about Duncan Jones after Source Code and Moon. He knows that just because it's Sci-Fi you don't have to randomly kill people off or have sad endings just to keep things fresh. The Kevin Spacey robot shows this.
Also, I saw Dylan Dog. I thought it would be a decent flick, but it was pretty disappointing. Just a lot of things that didn't work.
Except for a part where a zombie picks up a black guys arm and says "This smells like Old Spice.". Other than that it just tried and failed.

