Throughout the 10-day event in Park City, Utah clothing firms and technology companies set up free gifting suites on Main Street in order to get celebrities to use their products.
Afterwards, actors and musicians end up with hoards of free goods but now, socialite Paris Hilton and the kind-hearted trio have decided to give back by handing over their share of cold weather items from Sean Jean to New York Cares.
In addition, social fundraising organisation Rally.org pitched in by erecting a reverse gifting suite, where actor Jason Isaacs surrendered a pair of True Religion jeans to the Jon Bon Jovi Soul Foundation to benefit those affected by last year's (12) Superstorm Sandy.
And the Harry Potter star thinks the film festival's charitable new twist is a great idea, telling CNN.com, "You come to a festival like this and people give you stuff, which is very lovely. (But) I always feel very guilty."