Actor Shia LaBeouf used to be known as much for his bad-boy behaviour as his acting. He was even arrested for public drunkenness during the filming of his latest movie The Peanut Butter Falcon. But he says his wild ways are behind him and credits his co-star Zack Gottsagen with saving his life.

Zack plays Zac, a man in his early 20s who has Down’s syndrome and runs away from a state-run care home. In a case of art mirroring life, the two strike up an unlikely friendship on screen – and off. We went to meet them.