Marvel's latest Atlanta-filmed blockbuster, "Avengers: Infinity War," is due out April 27.

But why wait until then, when you can hit the premiere with Tony Stark himself?

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Robert Downey Jr., who plays Stark/Iron Man in this and other Marvel flicks, will host two lucky guests at the April 23 Hollywood premiere and raise money for charity as well. Random Act Funding, founded by RDJ and Susan Downey, supports organizations including the Boys & Girls Club, No  Kid Hungry and CRI-Help.

The winners will be flown to Los Angeles and will stay for two nights in a four-star hotel. The festivities include the after-party following the premiere. For more details and to donate for a chance to win, via his CrowdRise page.