The 85th Academy Award included a spectacular tumble, a surprise Best Picture, the appearance of a First Lady and a lot of musical numbers.
Ben Affleck, winner of Best Picture for Argo collected his award from Michelle Obama.
He said: "I thank everyone in the movie. I want to thank Canada. I want to thank our friends in Iran living in terrible circumstances right now. I want to thank my wife, who I don't normally associate with Iran, but I want to thank you for working on our marriage for 10 Christmases. It is work but it is the best kind of work, and there's no one I'd rather work with."
"I was here 15 years ago and had no idea what I was doing ... I was really just a kid, and I went out and never thought I'd be back here," said Affleck, who directed and co-produced "Argo."
Jennifer Lawrence falls over on her way to collect Best Actress Oscar.