1. There Will Be Blood (2007)
http://www.youtube.com/watch?v=ml2Ae2SIXac&feature=player_embedded Paul Thomas Anderson's There Will Be Blood is a modern classic, and it also holds the honor of having the best trailer of recent memory. The trailer is filled with beautiful cinematography and punctuated with Jonny Greenwood's great score. It captures the epic feel of the movie and while showing much gives away nothing. Daniel Day Lewis' voice-over commands the screen and gives the audience a peek at one of the best performances in film history. PT Anderson has always cut his own trailers and I'm glad he does. He's given us some of the greatest ones ever.