Will Smith was in London's Leicester Square on Wednesday night for the UK premiere of Men In Black 3.

The Hollywood star signed autographs and posed for pictures with fans. Smith was joined at the premiere by co-stars Josh Brolin, Alice Eve and Emma Thompson.

The film sees Smith reunited with actor Tommy Lee Jones. Smith said of the movie: "There's something about the idea that is a little twisted and little off, you never say 'oh yeah that movie is just like Men In Black, there's really nothing that's just like Men In Black."

"So I enjoy being in something that I really believe will go down in the history of Hollywood, at least, as a really iconic film."

Watch the MIB3 trailer below.

The film sees Smith's character travel back in time to the 1960s to prevent an alien assassinating his colleague - played in the flashback scenes by Josh Brolin.

Jay Z, Lewis Hamilton and girlfriend Nicole Scherzinger were among the celebrities who attended the premiere.

MIB3 is out on Friday, 25th May.