Sylvester Stallone is ''dying'' to make another 'Rambo' movie.

The action star is desperate to reprise the role of Vietnam war veteran turned mercenary John Rambo for a fifth time and already has some plot ideas to incorporate.

He said: ''I'm dying to do another 'Rambo'. He's in Arizona on the border. It will involve him going into Mexico. I don't think Rambo likes Mexicans.''

However, Sylvester admitted there may then not be another film in the series.

Asked if he would kill the character off, he told ''Yes.''

While the original Rambo movie, 'First Blood', was based on the novel by David Morrell, the endings differed and Sylvester admitted he changed it partly to open up the possibilities of turning the story into a franchise.

He explained: ''In the book, Rambo gets killed. I thought it was not the proper message. There had been close to 200,000 suicides by returning Vietnam vets. I said, 'Why don't we take him right to The Edge without annihilating him?' Quentin Tarantino said, 'You're a coward, you should have killed him!' I said, 'Quentin, you're a lunatic. I want to do some sequels, brother.' ''