Back to the Future star Michael J Fox has revealed which co-star he clashed with on the set of the 80s classic.

The actor, 64, who played Marty McFly in the iconic sci-fi film, said that George McFly actor Crispin Glover created tension behind the scenes.

Despite knowing Glover, 61, who played his father in Back to the Future, ahead of shooting, he was not ‘prepared to act with him’ as he never ‘did the same thing the same way twice.’

Glover’s ideas as to how his character should come across differed from director Robert Zemeckis and the wider film crew, which caused tension on set.

In his new memoir, Future Boy, as reported by The Independent, Fox continued: ‘Nobody puts Crispin in a box, but that didn’t prevent the camera crew from literally building a box around him.

‘As George McF

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