The Sundance-approved drama Another Earth is built around an idea that has fueled countless late-night, substance-enhanced dorm room discussions: what if, somewhere up there in the heavens, there was a parallel Earth where another version of you existed. Only instead of following your life path exactly, this Earth-2 you has opted for the opposite of every single decision you've ever made. Instead of Political Science, he/she majored in Marine Biology. Instead of losing the phone number for that hottie at the coffee shop, he/she called it right away. Instead of having Count Chocula for breakfast, he/she had a half-grapefruit. Are they any happier because they picked the second of these two divergent roads? Is their life more complete, their bank account fuller, their work and/or personal relationships more fulfilling? And here's the million dollar question: Would you trade places with them if you could?