Sam Elliot believes Hugh Grant "gets away with s**t" because he's so charming.

The 'Did You Hear About The Morgans?' actor claims his British co-star - who he appears alongside with Sarah Jessica Parker in the new romantic comedy - could talk himself out of any bad situation because of his well-spoken voice and gentlemanly demeanour.

He told BANG Showbiz: "I've never known anybody that can get away with the s**t that Hugh Grant gets away with. And he gets away with it because he's so damn charming. He gets away with everything. I couldn't get away with the stuff he gets away with - I mean I wouldn't even try!"

The 65-year-old film star learned a lot from his ladies man co-star.

He explained: "Hugh Grant is the main man. He's the number one romantic comedy man in the world."

Despite his own glittering career, Sam admits he found it daunting working with Hugh, Sarah and director Marc Lawrence.

Sam - who starred in 'Ghost Rider', 'Butch Cassidy And The Sundance Kid' and 'Roadhouse', which also starred Patrick Swayze - explained: "The highlight was just being part of it. You know, I don't often get romantic comedies coming my way. It was wonderful - particularly when it's a script from director Marc Lawrence. He is very smart. He really gives in his filmmaking and makes it enjoyable to be on set everyday. If you couple that with the fact that you are working with Hugh and Sarah... it was incredible. But it was a little daunting initially."