Courteney Cox
Cox has said a Friends reunion episode is impossible.Reuters

Courteney Cox has insisted that a Friends reunion is "just not going to happen."

The 49-year-old actress, who found fame as the fastidious Monica Geller in the popular sit-com said that it is impossible to even get her former co-stars together for a reunion dinner.

Cox starred with Jennifer Aniston, Lisa Kudrow, Matthew Perry, Matt LeBlanc and David Schwimmer in the series which ran for ten years ending in 2004.

In an interview with David Letterman she said: "Let me tell you something: there's six friends and I've been trying to put together a cast dinner for 10 years. It doesn't happen!

"I can get the girls to come, maybe Matthew Perry. Matt LeBlanc cancelled last time right at the last minute, Schwimmer lives here [in New York City], so it's just not gonna happen."

The Cougar Town actress revealed that her enthusiasm for a possible reunion always get her into "trouble."

"Only because once you say, 'Well, I'd like it,' then they have to contact every other cast member and be like, 'Courteney's into it!' And then I get in trouble. It's not going to happen."

The cast of Friends
Friends stars David Schwimmer, Jennifer Aniston, Courteney Cox, Matthew Perry, Lisa Kudrow and Matthew Perry.

It was recently rumoured that the cast were planning to get together for an episode marking the show's 20th anniversary, however, the actress added that even if the cast agreed to return to the programme, there was not much scope for a reunion story.

"We did the whole show on a soundstage in Monica's apartment. So what are you gonna do?"

While Jennifer Aniston has never been in favour of a reunion episode, she recently revealed plans for a stage version with Glee star Lea Michelle playing Rachel Green.

Cox was seen arriving at the Letterman studios in New York with boyfriend Snow Patrol musician Johnny McDaid.

The actress is attending the Tribeca Film Festival where her directorial debut, Just Before I Go will be screened for the first time.