Sometimes I feel like I have an encyclopedic knowledge of movies, yet I can't even remember all of my cousin's names (sorry, John[?]). I'm not saying I'm proud of either of those things, but it's the truth, which is why I'm always shocked when I watch a movie for the second time only to realize, "THAT actor is in this?!"
Luckily we're served with an endless supply of those moments as our future favorite actors take on obscure roles before they get famous. Think about it. You could be watching your future favorite actor right now and not even known it. Here's a tip, pay attention to the people playing dead bodies in CSI - you could be looking at the next Tom Cruise.
Let's see if you're as embarrassed as me about not knowing some of these. In fact, let's play a game and see how many of these 50 famous actors you knew were in that movie and tell mein the comments. The actress that made an appearance in "Save The Last Dance" will absolutely stun you!
