Chris Rock has said that voicing a film character is “easy” compared to “real work”.

The 47-year-old actor lends his voice to the role of Marty the zebra in the Madagascar film franchise, which he explained is easy work in comparison to other jobs.

He said: ''It's easy compared to work. I mean, we're working right now, but we're not working like the person who's got to clean up this room later. That's real work.''

David Schwimmer, who portrays Melman the giraffe in the Madagascar movie series, explained that he took on the role because he’s always loved animated movies rather than because of the financial benefit.

Contact Music further quote Schwimmer as saying: ''I don't think we do it just for the money. We're all fortunate enough to have had a career. For me, I'm such a fan of animated movies and wanted to be a part of a great one. Ever since I was a boy, I loved animals - and in 'The Jungle Book' it was wonderful to see them brought to life.

''I'd never tried it, never voiced a character. When I was offered this, I said, who's my character? They said: 'A giraffe.' And I thought: 'Of course. I have a long face, I'm taller than the other guys.' It was a chance to try something new.''