Prepare to feel all the feelings.

This rare found footage of Robin Williams working in the '80s is doing the rounds on the internet today having been discovered after Williams' death last year, and shows the man at his prime driving a director insane as he ad-libs and goes off on his trademark tangents when all director Howard Storm wants to hear is the line "If he can work with me... he can work with anyone". And Robin Williams being Robin Williams gives Storm 13 minutes of non-stop madness before he gives it to him.

This will make you very happy and very sad simultaneously.

Via YouTube