The most famous story of time travel and predestination is getting a movie adaptation, starring Ethan Hawke. Robert A. Heinlein's "All You Zombies" features a guy whose very existence is a time paradox — but the movie looks like more of a gritty, noir-influenced thriller. »
Now, if I could travel through time, I'd head for the future, but for some reason, people just keep heading for the not-so-distant past where they run into their own mothers.
» premiere, one character learned the shocking truth about his parentage. And he's hardly the first. When scifi's heroes and villains start shaking the family tree, a few unexpected branches are sure to tumble down. We collected some of science fiction's greatest genealogical curveballs. Be…