Robert Downey Jr. is offering fans the chance to live out the best night of their life culminating at the World Premiere of Marvel’s Avengers: Age of Ultron, all to support a great cause.

In this video, Robert Downey Jr. reveals that anyone can win the opportunity to be flown with a friend to Los Angeles to experience a day in the life of Tony Stark. By going to www.omaze.com/RDJ and donating just $10 to benefit Julia’s House, a children’s hospice center dedicated to helping improve the lives of children diagnosed with terminal illness, you could win a chance to live out your superhero dreams with RDJ in LA. You’ll kick things off with breakfast at the iconic Randy’s Donuts before launching into an action-packed day including a helicopter ride over the Hollywood sign, indoor skydiving, and a custom gown or tux fitting before meeting Robert Downey Jr. himself for an epic motorcade arrival at the World Premiere of Marvel’s Avengers: Age of Ultron. And yes…there will be caviar.

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And did we mention you’ll be one of the first people on this planet to see the newest release from Marvel’s hit franchise? Yeah, that’s happening. But the opportunity to win this once-in-a-lifetime experience won’t last forever.

ABOUT THE EXPERIENCE

You and a friend will be joining Robert Downey Jr. for the best day of your lives at the premiere of Marvel’s Avengers: Age of Ultron. You will experience indoor skydiving, a helicopter ride over the Hollywood sign, a custom tux/gown fitting, a pit stop at Randy’s Donuts and caviar tasting with RDJ before riding in his private motorcade to the premiere. Flights, 4-star hotel, and transportation are all included. Best of all, every entry benefits Julia’s House.

ABOUT JULIA’S HOUSE

Julia’s House is a children’s hospice charity dedicated to helping life-limited children and their families. The nurses and caregivers at Julia’s house provide life-changing support for parents and their children both in the hospice and in their own homes. The majority of those children are unlikely to live beyond the age of 18, but thankfully Julia’s House is there for them year-round, offering emergency respite and overnight care during treatment and offering emotional and practical support at the end of a child’s life.

ABOUT OMAZE

Omaze is an online charity platform that raises money and awareness for nonprofits by offering everyone the chance to win once-in-a-lifetime experiences with their favorite performers, athletes and influencers. That’s everything from walking the red carpet on a date with George Clooney, to playing tennis with Serena Williams, to being in Star Wars: The Force Awakens. Founded by two best friends, Matt Pohlson and Ryan Cummins, Omaze connects its community of donors to transformative experiences, remarkable causes and compelling content. For more information, please visit www.omaze.com.

Please do not pass up on this amazing opportunity! Seriously people. Be a hero and make a small donation and potentially spend the day with RDJ! What are you waiting for! Avengers: Age of Ultron hits theaters may 1st, 2015.