EXCLUSIVE: In his final film performance, the late Robin Williams lends his voice to sci-fi comedy Absolutely Anything for Monty Python’s Terry Jones. The legendary entertainer was the first to sign onto the long-gestating comedy about a disillusioned teacher (Simon Pegg) granted the power to do “absolutely anything” by scheming aliens, played by the Pythons. In Deadline’s exclusive clip, Pegg gives his devoted dog Dennis the ability to speak – and out comes Williams’ unmistakable voice.

Absolutely Anything Robin Williams“One thing we’re grateful to Robin for is he was the first to come on and he stuck with the whole thing,” recalled Jones’ co-writer Gavin Scott (The Mists of Avalon, Small Soldiers), who with Jones spoke with me during a recent ADR session in Los Angeles.

Jones and Scott first began writing the film 20 years ago, but it didn’t come together until Jones’ son Bill and producing partner Ben Timlett found financing. Phoenix Pictures’ Mike Medavoy and Chris Chesser (Major League, The Rundown) are executive producing the film which also stars Kate Beckinsale and Eddie Izzard.

Robin Williams“The kind of attitude that led him to stick with the project through all its ups and downs, he totally exhibited here,” said Scott. “He wanted to make everybody feel good from the engineer to the lady making the coffee. It was very late in the day for him and we didn’t know that, but he was a real mensch.”

Absolutely Anything has sold a number of foreign territories and will hit UK theaters via Lionsgate next spring.