Night At The Museum stars Ben Stiller and Ricky Gervais have paid tribute to tragic funnyman Robin Williams after working with him in his final onscreen appearance.

The trio teamed up to shoot the last movie in the hit comedy franchise earlier this year (14), with Williams reprising his role as waxwork Teddy Roosevelt.

Unknown to the cast and crew, the scenes were among the last Williams filmed prior to his suicide in August (14), and Stiller vividly recalls how the shoot was a poignant one as Night at the Museum: Secret of the Tomb would be the end of the franchise.

He tells U.K. talk show host Graham Norton, "On set we felt it was going to be the last Night at the Museum so there was that awareness of it, but obviously we had no clue what was going to happen (to Robin)."

Gervais adds, "Everyone I have ever met who knew him absolutely loved him. I've never heard a bad word about him. He was lovely all the time and never forgot to be the nicest person. If he had a second between takes he would be entertaining the crew. He was an amazing, lovely man."