TRAILERS: "The King's Speech", "The Fighter", "127 Hours" and "Black Swan"

Here are the trailers for some upcoming movies for awards season:

"Black Swan"
http://www.youtube.com/watch?v=5jaI1XOB-bs

"The King's Speech" (Colin Firth is the big favourite for Best Actor this year)
http://www.youtube.com/watch?v=-aS4hoOSlzo

"The Fighter" (it seems Christian Bale is the big frontrunner to win Best Supporting Actor in this one)
http://www.youtube.com/watch?v=71l-kIhJ5j8

"127 Hours"
http://www.youtube.com/watch?v=OlhLOWTnVoQ