Henry Cavill donned his Superman costume to help make two kids' day, and show off some new "Justice League" promotional art, in a photo for the Make-A-Wish Foundation.

The photo was posted on Cavill's Instagram account, where the actor writes, "I had the good fortune of meeting some real Superheroes last week. Orin, your strength is exceptional and Summer your support is a rock that is irreplaceable. You are both inspirations to us all!"

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Cavill is seen in the shot along with young Orin and Summer. In the background are cardboard cutouts of the "Justice League" cast: Cavill as Superman, Ray Fisher as Cyborg, Gal Gadot as Wonder Woman, Jason Momoa as Aquaman, Ezra Miller as The Flash and Ben Affleck as Batman.

Directed by Zack Snyder, "Justice League" also stars Amy Adams, Jeremy Irons, Jesse Eisenberg, J.K. Simmons, Willem Dafoe and Amber Heard. The film opens Nov. 17, 2017.

I had the good fortune of meeting some real Superheroes last week. Orin, your strength is exceptional and Summer your support is a rock that is irreplaceable. You are both inspirations to us all! #makeawish #Superman

A photo posted by Henry Cavill (@henrycavill) on