Oscar 2013: top 5 quotes

"I was here 15 years ago.... I never thought that I would be back here." - Ben Affleck, on accepting the Best Picture Oscar for his Iran hostage drama Argo, 15 years after he won his first Academy Award with Matt Damon for Best Original Screenplay for Good Will Hunting.

"Three years ago, before we decided to do a straight swap, I had been committed to play Margaret Thatcher... Meryl was Steven (Spielberg)'s first choice for Lincoln. And I'd like to see that version." - Daniel Day-Lewis, picking up his record third Best Actor Oscar for Lincoln, referring to presenter Meryl Streep's Oscar-winning performance as the former British premier in The Iron Lady.

"How did it happen? Look at my dress. I tried to walk up stairs in this dress. That's what happened. I trod on the fabric, they waxed the stairs." - Best Actress winner Jennifer Lawrence, after she tripped while heading up on stage to collect her award.

"Thank you, movie god." - Ang Lee, after accepting the Best Director Oscar for Life of Pi.

"Welcome to the White House, everyone." - First Lady Michelle Obama, helping to present the Best Picture Oscar to Argo via videolink from Washington.