If it seems like the in-crowd of Hollywood never changes, remember this: once upon a time, Angelina Jolie was playing second fiddle to the better-known Winona Ryder in 'Girl, Interrupted' and only a few years ago, Amy Adams was an unknown with a three-episode arc on 'The Office.' Sometimes it's easy to predict the big stars of the new year - it seems obvious that Anna Kendrick's popularity is poised to explode, with a handful of award nominations for her 'Up in the Air' performance and two big movies in 2010. Who else is likely to climb the ladder this year? PopEater picks the most likely candidates for sudden stardom in 2010 after the jump.