At the end of Source Code is Jake Gyllenhaal‘s Colter Stevens finally over as a half-living entity (i.e., dead), or is he living a happy smiling life with Michelle Monaghan in the Source Code realm, or is he “alive” in the body of Sean Fentress, the guy he’s been inside all along, in the real-world realm? I’m not recalling all the particulars. Consider this bold-faced spoiler warning before watching the video. (Thanks to Rope of Silicon‘s Brad Brevet for starting this off.)