And actor Orlando Bloom also won big, taking home the prize for best male breakthrough performance.
Bloom, who played elf Legolas, wasn't at the awards, but sent a message saying: "I'm flattered, the experience of working on The Lord of The Rings was life-changing. I hope you enjoy the second one."
Ewan McGregor was another British winner, teaming up with Moulin Rouge co-star Nicole Kidman to win the award for best Musical Sequence.
American Pie 2 actors Seann William Scott and Jason Biggs took that particular honour.
Being MTV there was also some music, with Eminem and Kelly Osbourne both performing, Kelly singing an old Madonna song Pappa Don't Preach.