Butler offers himself up for charity

The 300 star is offering up the date to benefit non-profit organisation Kids Kicking Cancer, which teaches martial arts to empower young patients.

Fans who make a $20 (£12.50) donation to the program will be entered into the raffle draw for a date with Butler.

He’s also handing over invitations to an upcoming film premiere and a visit to one of his films’ sets.

Stars including Josh Hartnett, Jessica Biel, Hugh Jackman and the Jonas Brothers have also donated to Kids Kicking Cancer.