In a new interview, a co-star of the late Robin Williams explained how the actor and comedian used his unique comedy talents to help him ask a girl to the prom.

Skyler Gisondo stars in Night at the Museum: Secret of the Tomb, playing Ben Stiller's son. If you're a fan of the franchise, you know that Williams played Teddy Roosevelt in the trilogy. During filming, Williams and Stiller joined Gisondo, a high school senior, to help him ask a girl to the prom. Via The Hollywood Reporter:

Gisondo, who plays the son of Ben Stiller's character in the film, was a senior in high school during shooting. He was away from home, and his pals were also asking girls to the prom, so he decided to see if co-stars Stiller and Robin Williams would appear for a few seconds in a video to ask his prospective date.

"All morning, Robin was pitching more ideas," Gisondo tells The Hollywood Reporter. He was saying 'Can I say this? Would it be appropriate to say this?' You're Robin Williams. You can say whatever you want!"

The video became more elaborate as Williams and Stiller continued to pitch ideas.

"It turned into this three-minute, ridiculous thing. A prom-posal," says Gisondo. "I realized that was the most awesome three minutes of my life and I've accepted it will go downhill from there."

Star power helped and the girl accepted Gisondo's invitation. "Robin was this bottomless reservoir of kindness and hilarity," Gisondo told THR. "

Williams has departed this mortal coil and all we're left with is moments of his comedic genius like this. I'll take it but I am going to do so much ugly crying after watching it.