Back to the Future 4 M.J Fox

Michael J Fox is set to star in a new ‘Back To The Future’ time-traveling movie.

The actor, who suffers from Parkinson's disease, wants to make a fourth and final film of the much-loved series.

But the 44-year-old star has several conditions – that movie bosses makes his character as old as he is in real life and he stars as eccentric scientist Doc Brown – formerly played by Christopher Lloyd.

He told website Moviehole.net: "The only way it would work would be if I played Doc.

"I'm 44-years-old now and I'm not interested in running around on skateboards!"

"I think after 1, 2 and 3 we all kind of felt we had done it."

"And I think if they did it again now they would do it with a younger cast and just do a different realization of it, which would be fun."