Big screen star Bruce Willis is set to play the role of legendary Formula One commentator Murray Walker in a new film about the life of track hero Michael Schumacher.

Schumi will reportedly play himself in the flick, with Willis poised to reprise the role of high-pitched favourite Walker, who as commentator oversaw the German's seven Formula One world championships.

"A Hollywood producer is interested," Schumacher's agent Willi Weber said.

"It would be called The Michael Schumacher Story, with him as the main actor.

"Bruce Willis would certainly do Murray justice."

Walker, 84, covered motorsport for over half a century before retiring in 2001 after the United States Grand Prix at Indianapolis.

"I had to make sure when looking at the calendar that it was April 25 not April 1," he joked, referring to the moment when he was told of the Willis possibility.

"I always regarded Bruce Willis as a mirror image of myself, don't you know... a much younger version though."

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Jonathan Symcox / Eurosport