Robert Pattinson has admitted that a sex scene in a car with his co-star Julianne Moore left him in a sweat.

The 28-year-old played out some backseat action with the actress in David Cronenberg’s new satire on Hollywood, Maps To The Stars.

And it is not the first time Rob has got up close and very personal with an actress in a car – all in the name of art.

He also seduced Juliette Binoche in a limo in his previous collaboration with the Canadian director in Cosmopolis.

Speaking at the Cannes Film Festival this week, Rob said the sex scene with Julianne was a “wonderful experience” but also, “very sweaty”.

When asked to name which of his onscreen passengers was the better lover, Pattinson joked, “They’re both seven!” before quickly adding, “Obviously, Julianne”, as the actress sat very close beside him!

Director Cronenberg chipped in, “I don’t think I’m breaking any new territory when there’s a scene of people having sex in cars. ‘Why wouldn’t you? There’s such great cars around.”

Rob was doubling up while in Cannes as he was also at the film festival to promote his other movie, The Rover.