LOS ANGELES (TheWrap.com) - From Ang Lee to Peter Jackson, some of Hollywood's top directors are making an unusual bet this fall: They're relying on a collection of largely unknown actors to reap success at the box office. If the bets pay off, a bunch of relative unknowns - not all of them fresh-faced newbies - may find themselves household names thanks to show-stopping performances in some of this fall's most heavily anticipated films. Here's a look at five performers whose days of toiling in semi-obscurity are about to end. ...