Tom swaps Top Gun for Top Gear
Tom Cruise enjoyed being the "top gun" on the Top Gear racetrack, he said.
In between promoting his latest film, Knight And Day, in the UK, the Mission: Impossible actor, 48, found time to race around the famous track against co-star Cameron Diaz.
"It was fun, very fun. I like fast cars and motorcycles - I've always loved them since I was a kid," he said on the red carpet at the film's premiere in London.
The two Hollywood stars were racing one another in a Kia cee'd in a bid to complete the fastest lap, and the results will be shown on Sunday's Top Gear show on BBC Two. They also playfully tried to wrest off The Stig's helmet as they larked around while filming their laps. The Stig came to Cameron's aid when the Kia conked out at one point - but the damsel in distress repaid the good turn by cheekily trying to remove the mysterious driver's headgear.
Cameron, who glittered in a silver sequinned Stella McCartney minidress, admitted she was finding it difficult to keep their scores a secret.
"We did timed laps. It's very exciting - we know the score and we want to tell everybody, but we can't because we want them to watch the show," she said.
Meanwhile, Mission Impossible star Tom went to help when a man fainted in the Top Gear studio audience, before recovering.
The duo reunited for action comedy Knight And Day - their first film together since 2001's Vanilla Sky. Tom heaped praise on his co-star, saying: "Cameron is such a great actress to work with every day. She's someone who brings a smile every day, she's just someone who is very fun to be around."