Robert Downey, Jr. is calling on his fans once again to support Random Act of Funding. Through Omaze, Downey is offering fans a number of incentives including a chance to join the star on the set of the next Avengers film. Depending on when that visit occurs, the lucky yet charitable winner will be on the set of either Avengers: Infinity War or Avengers 4, though technically Infinity War is the next one.

For more information and a few new looks at the Avengers: Infinity War set, see the video above and then head over to Omaze to enter. You can see more details on Random Act of Funding below.

Random Act Funding is a philanthropic organization founded by Susan and Robert Downey that distributes kindness in the form of financial support at local, national and global levels. Beneficiaries in the last year included Boys & Girls Club, United Friends of the Children, Upward Bound House, Taraloka Foundation, and Toys for Tots. Some of this year’s benefiting partners will include CRI-Help, Atlanta Children’s Shelter, Children’s Restoration Network, and Covenant House Georgia. For the first time, Susan and Robert are inviting the winner of this campaign to help them choose an additional organization to support.