Skyler Gisondo's Prom Proposal (featuring Ben Stiller and Robin Williams)

An old vid from May 2014 of the late Robin Williams joking around as he tries to help his 'Night At the Museum' costar, Skyler Gisondo, with his prom proposal. We're sure this won't be the last viral vid of Robin Williams and the wonderful memories he's left behind for us to enjoy...

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