08/13/2014 09:25 am ET Updated Aug 13, 2014

See Allison Williams Flying For Peter Pan, Then Read Her Touching Robin Williams Tribute

Allison Williams, who will star as Peter Pan in NBC's live-television event, "Peter Pan Live," on Dec. 4, has already started flying. The "Girls" star posted an Instagram video of herself floating through the air with the aid of wires. Williams turned the goofy clip into something profound, however, thanks to her caption, which references the late Robin Williams (no relation): "First day of flying lessons for Pan. Thinking about and missing a hero of mine who once did this and left big shoes to fill."

This post has been updated to indicate there is no relation between Allison Williams and Robin Williams.