In the June 15, 1961 issue of the British magazine "Health and Strength," about this movie, Oscar Heidenstam wrote, "Furthermore
Reg Park was not going to have his reputation as the greatest physique of all time mucked about by clauses in his contract that he should not weigh more than a certain amount, etc. He stipulated that if he was to play Hercules, he wanted to look like one imagined the legendary Hercules to be. He got his way and everything possible was put at his disposal for him to keep in his usual peak form during the making of this very strenuous and stupendous film. [...] The producers kept weights on the set for him, so that he could keep in tremendous physical shape. In spite of a very exhausting film schedule Reg lost only 5lb. in body weight. His normal chest is 53in. and his waist a net 32in., his body weight around 230lb. [...] Because Reg is so big they were unable to find a "stand-in'' for him, so Reg has had to do all the stunts for himself. [...] In a shipwreck scene he was badly battered and bruised when tons of water washed him into the mast and ropes."
