LOS ANGELES (Reuters) - Vampire movie "Twilight" took the honors at the MTV Movie Awards on Sunday, but it was an unscripted stunt involving "Borat" actor Sacha Baron Cohen and singer Eminem that stole the live show.
"Twilight" swept up five awards, including best movie, best kiss and best fight at the irreverent fan-driven event where viewers had a sneak preview of the movie's forthcoming sequel "New Moon."
Australia's Heath Ledger won the award for best villain, adding to the slew of trophies awarded to the "Dark Knight" actor after his death in January 2008.
But it was the outrageous Cohen, promoting his upcoming movie "Bruno" in which the British actor plays a gay Austrian fashionista, who brought the house down.
Sweeping high above the studio on a harness, Cohen hit an obstacle, spun down toward the audience and landed face down in the lap of Eminem, exposing his naked bottom to both the white rapper and to millions of viewers watching the awards show live on television.
MTV said Eminem stormed out "in a heated rage" after the incident at the Gibson Amphitheatre near Los Angeles where the live awards show was taking place.
"This is very exciting TV," host Andy Samberg ad-libbed.
"I enjoyed his (Cohen's) precision landing," actor Ben Stiller told reporters backstage. "I did not see that coming."
The MTV awards are nominated and voted on by fans through online polls, producing a more populist selection than the Oscars or the Golden Globes. Winners get a golden popcorn statuette.
"Slumdog Millionaire," which won a leading eight Oscars in February, went into Sunday's MTV Movie awards with six nominations but came away empty-handed.
"Twilight" won none of the mainstream movie awards earlier this year but has taken more than $382 million at the box office worldwide and has turned its star Robert Pattinson from an unknown into an international heartthrob.
Viewers on Sunday also got brief previews of other popular blockbusters due for release later in 2009, including "Transformers: Revenge of the Fallen", and "Harry Potter and the Half-Blood Prince."
In a show that pushed the boundaries of taste and language, actress Amy Poehler won the new "WTF" award for urinating in the sink in her 2008 movie "Baby Mama."
"For those of you still living in a cave, the WTF award means, What the (bleep)," said presenter Hayden Panettiere, the teen star of TV show "Heroes".
Oscar-winner Forest Whitaker sang a classical arrangement of the "Dick in a Box" parody sketch made famous by Justin Timberlake on "Saturday Night Live".
Disney stars Zac Efron and Ashley Tisdale of the money-spinning franchise "High School Musical" won best male performance and best female breakthrough performance respectively.
Miley Cyrus, also from the Disney stable, picked up the award for best song for "The Climb" from "Hannah Montana: The Movie".