Kutcher tells What Happens in Las Vegas

Ashton Kutcher thrilled his fans on the red carpet in Leicester Square last night at the premiere of his new film, What Happens in Las Vegas.

In his typical style, the Punk'd star and partner of actress Demi Moore screamed back at his fans as they hailed him at the event.

However, Kutcher's co-star Cameron Diaz was unable to attend the screening following the death of her father last week.

When asked about her situation, Kutcher said that she was doing as well as could be expected.

"I wish she was here, because she was all set to come and then the tragedy with her dad [happened]. I think she's doing pretty well but I can't imagine you'd be doing too well if you've just lost your dad," he said, according to MTV.

The film focuses on the story of two strangers who wake up in Las Vegas to find that they have accidentally got married. The pair attempt to rectify their mistake, but, in true rom-com style, end up falling for one another.

Kutcher, who has appeared in such films as The Butterfly Effect and Dude, Where's My Car?, walked the red carpet dressed in a brown bomber jacket, talking happily to fans and signing autographs.