Watch Robin Williams help teenage co-star get a date

Months before his death in August this year, Robin Williams recorded a message with a teenage co-star hoping to convince the girl he wanted to take to the prom to say yes.

The video, also featuring Ben Stiller, was posted by then 17-year-old actor Skyler Gisondo in May while the three of them filmed Night at the Museum: Secret of the Tomb.

Needless to say, the clip, ostensibly a skit, highlights Williams's warmth and comedic talent.

In a new interview with the Hollywood Reporter, Gisondo - who played Stiller's on-screen son - said: "All morning, Robin was pitching more ideas. He was saying 'Can I say this? Would it be appropriate to say this?' You're Robin Williams. You can say whatever you want!"

He added: "Robin was this bottomless reservoir of kindness and hilarity... It was just so special to work so closely with this guy who's movies I've grown up with and watch his preparedness and his kindness."

Oh, and by the way, he went to the prom.

Watch the video below.

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