Filmmaker David O. Russell is auctioning off a walk-on role in an upcoming movie to raise money for a Tibetan charity.
The Fighter director is expected to raise $15,000 (£9,300) for Tibet House by inviting the winning bidder to shoot a scene in his next project.
Hip-hop mogul and philanthropist Russell Simmons is also helping the cause by pledging to give an hour-long private yoga lesson in New York City - a prize expected to fetch $5,000 (£3,100) when it goes under the hammer on the Charity Buzz website.
Director Martin Scorsese has offered a visit to the set of his hit TV show Boardwalk Empire, while a meet-and-greet session with Maggie Gyllenhaal at the premiere of her comedy Hysteria is also up for grabs.
Rare prints of stars including John Lennon, Jay Z, Bob Dylan and Jimi Hendrix are also available in the auction for Tibet House, a charity which promotes and preserves Tibetan culture.