Will Smith and Charlize Theron will be among the stars attending the premiere of Hancock later in London's Leicester Square.

Smith plays a bungling superhero who manages to do jaw-dropping damage during his well-intentioned bids to save lives.

Jason Bateman is cast as Ray Embrey, a PR executive whose life is saved by Hancock.

Theron plays Embrey's wife.

Smith shot to fame in the 1980s in hit US TV series The Fresh Prince of Bel Air.

He has also starred in Hollywood blockbusters Men In Black, Independence Day, The Pursuit of Happyness and I am Legend.

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