“Iron Man” star Robert Downey Jr. has teamed up with charity organization Omaze to invite one lucky donator and a friend onto the set of “Avengers: Infinity War.” The winner will be selected from a pool of donators who contribute at least $10 to Random Acts Funding through Omaze. The winner will be rewarded with a visit to the set of “Avengers: Infinity War,” the latest installment in Marvel’s “Avengers” film series.

The winner will also get to have lunch with the actor. Airfare and hotel accommodation will be covered, and the winner will also work with Downey Jr. to select a Random Acts Funding charity project, where the accumulated contributions will be donated.

Campaign perks for the “Avengers: Infinity War” Omaze campaign include numerous t-shirts featuring Iron Man and Spider-Man, an Iron Man Funko POP! signed by Downey Jr., a 1/4 scale Iron Man figurine, a signed film still and a signed piece of mystery concept art, among others. The fundraising campaign will run until June 15, 2017.

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Random Acts Funding is a nonprofit organization that encourages random acts of kindness around the world. The nonprofit was founded in 2009 by “Supernatural” star Misha Collins and Lisa Walker to organize and disperse United States stimulus money for nonprofit projects. One such project was the 2010 earthquake in Haiti, which occurred mere weeks after the founding of Random Acts Funding, then known as MinionStimulus. The fledgling nonprofit raised over $30,000 in disaster relief funds in short order and went on to raise several hundreds of thousands of dollars for Haiti. The organization’s current project is building a high school campus in Nicaragua.

Omaze is a donation-based fundraising organization that teams with celebrities and brands to raffle once-in-a-lifetime experiences, like an outdoors excursion with Bear Grylls or a visit to the set of an upcoming “Star Wars” film. In each case, one lucky winner is chosen from a pool of donations. The size of the donation determines the number of raffles entries the contributor submits. The larger the donation, the more raffles entries. Larger donations also award various campaign perks in the form of merchandise.

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Directed by Anthony and Joe Russo, “Avengers: Infinity War” stars Robert Downey Jr., Josh Brolin, Mark Ruffalo, Tom Hiddleston, Chris Evans, Chris Hemsworth, Jeremy Renner, Chris Pratt, Elizabeth Olsen, Sebastian Stan, Benedict Cumberbatch, Paul Bettany, Samuel L. Jackson, Cobie Smulders, Benedict Wong, Zoe Saldana, Karen Gillan, Vin Diesel, Dave Bautista, Pom Klementieff, Scarlett Johansson, Benicio del Toro, Tom Holland and Anthony Mackie.