Do you want to visit the set of the Avengers: Age of Ultron, as the personal guest of writer and director Joss Whedon?

Yyyyyeah, you probably do. Go get your wallet; it's for a good cause. Whedon and Marvel are auctioning off the opportunity for one lucky so-and-so (plus guest) to get a behind-the-scenes glimpse at the making of Age of Ultron in London next spring. Proceeds from the auction will benefit LA's Downtown Women's Center, a housing and support organization that has been helping out homeless and severely low-income women in downtown Los Angeles since 1978.

The auction will run on the Bidding For Good website from 5 p.m. EST on October 3rd to 6 p.m. EST on October 13th, with bidding starting at $500. The set visit includes a meeting with Whedon. Winner and guest will be asked to sign a non-disclosure agreement prohibiting photography and social media regarding your visit, and will be subject to a screening by Marvel security. Flights and lodging accommodations are not included in the prize, and there is no guarantee that you will lock eyes with Chris Evans or Scarlett Johansson across a crowded room and find your hearts entwined as one. (We think you have a shot with Jeremy Renner, though).

The Downtown Women's Center offers permanent supportive housing for disadvantaged women. Its services include meals, job counseling, skills classes, health workshops, and personalized case management. It operates 119 housing units and also serves 200 women a day at its drop-in Day Center.

The Bidding for Good auction also includes a signed Mad Men script, a signed Shaquille O'Neal basketball (and he played John Henry Irons in the Steel movie, you know), and box seats at the Hollywood Bowl.

(Totally kidding about the Jeremy Renner thing)

[Via ScreenCrush]