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Jason Segel has revealed a surprising highlight of making the new Muppets movie.
The actor joked: "Well I do some singing and dancing and it's pretty intense - this body is made to dance."
He added: "I've always been a fan of the MGM-style musicals and it was cool to put those into this film."
Segel co-wrote the Disney movie, and stars alongside Amy Adams as Gary, a small-town man who travels to Los Angeles and discovers the Muppet Studio is about to be destroyed.
He said the enduring appeal of the characters lies in their sense of optimism.
"They're a force of positivity, they never get laughs from poking fun at other people, and they kind of remind us of the best version of ourselves," he explained.
Muppets director James Bobin revealed he looked back at the British history of the world's most famous puppets for inspiration for the film.
"No-one knows this, but the show was made in England between 1976 and 1981," he explained.
"If you watch it now, it feels way more like an English TV show than an American TV show."
British-born Bobin, who wrote Da Ali G show and Flight Of The Conchords before taking on the latest incarnation of the Muppets, added: "I wanted to bring the English part back to the American part of it, and make it a new hybrid thing, so I hope I've done that."
