During the filming of “Death at Owell Rock” starring Mark Damon and Stephen Forsyth, Second unit director Yves Boisset stated that a stuntman died during the shooting of the sequence of the wagon explosion. The stunt failed the day before and the director Riccardo Freda insulted the stunt man who did it again the next day, when he died. But after his death Freda sent a big sum of money to the stunt man's family.
Actor Stephen Forsyth had denied any death occurring while filming. Italian film historian Roberto Curti stated that no other sources outside Boisset reported the death.