A couple weeks ago there was a trend on Facebook that prompted users to change their profile photos to their celebrity doppleganger. (Mine was Amy Adams as Julie Powell in Julie and Julia.) Ever since then, I've been thinking of dopplegangers. We've always heard about "evil twins," often as a plot device in movies/tv shows/books. I think my favorite was Samantha/Serena on Bewitched. Willow's doppleganger on Buffy is the most recent one I can think of, but I don't watch a lot of television these days. There are a few very well-known figures who have met their dopplegangers, and being true to the "bad things are about to befall you" reputation they have, the person died within a short period