Watch Robin Williams in clip from A Merry Friggin' Christmas, one of his last films

The actor played a father and grandfather in the festive comedy

Robin Williams played a grandfather with some unusual festive advice (YouTube )

Newly released footage depicts Robin Williams in one of the last films he worked on before his tragic death earlier this month.

The Oscar-winning performer, 63, was found dead on 11 August after hanging himself at his home in Tiburon, California.

In A Merry Friggin’ Christmas, the late actor played a father and grandfather in a family of misfits.

The clip features him offering his grandson (played by Pierce Gagnon) advice on what to leave Santa Claus on Christmas Eve in the absence of a supply of milk and cookies.

"I was wondering if you had anything else that I could give Santa?" asks Gagnon.

“Of course I do Doug,” Williams says, before the scene switches to the youngster offering up a bottle of Bourbon and some asparagus.

Following Williams’ death, it was revealed that the much-loved star had been suffering from the early stages of Parkinson’s Disease.

Williams’ wife, Susan Schneider, revealed the diagnosis in a statement on 14 August.

“Robin's sobriety was intact and he was brave as he struggled with depression and anxiety as well as early stages of Parkinson's disease which he was not yet ready to share publicly,” she said.

“It is our hope in the wake of Robin's tragic passing, that others will find the strength to seek the care and support they need to treat whatever battles they are facing so they may feel less afraid,” she added.