Doesn’t it sometimes seem like celebrities all know each other? Well, that’s probably because most of them do. Off the top of your head, you can probably name any number of famous Hollywood families—the Gyllenhaals, Baldwins, Arquettes, Robertses—but the connections aren’t always so obvious. Can you guess, for example, who Mirror Mirror star Lily Collins’ famous parent is?

Once upon a time, even the biggest starlets were just young actresses looking for their big break. Take a look at our list of the hottest young actresses and the breakout roles leading them in their quest to become the next Kate, Julia, or Meryl.