12 Years a Slave
You'd be hard pressed to find a more outstanding cast playing in a movie directed by a more talented director. Steve McQueen's follow-up to the brilliant Shame is based on a true story about a free man named Solomon Northup who was sold into slavery. This cast may be the best ever assembled. I'll let the names speak for themselves: Chiwetel Ejiofor, Scoot McNairy, Paul Dano, Benedict Cumberbatch, Paul Giamatti, Alfre Woodard, Michael Fassbender, Brad Pitt. Wow. Just wow. There are so many more unbelievable actors in this, it would be ridiculous to name them all here.