Hugh Jackman and moviemaker James Cameron are set to swell the coffers of children's charities by offering up money-can't-buy items for Variety's upcoming Power of Youth auction.

Jackman has offered up a walk-on role in X-Men and Lethal Weapon producers Laura and Richard Donner's next movie and a chance to spend time with him on set, while a private screening of Titanic director Cameron's much-anticipated new movie Avatar will also go under the hammer.

The winning bidder for the latter item will actually get to watch the sci-fi film with Cameron in his personal screening room.

Proceeds from the upcoming Los Angeles gala will benefit the Starlight Children's Foundation, among other charities.

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(This news article provided by World Entertainment News Network)