Spencer Tracy was on the wagon when he consented to do the film with friend 'Robert Wagner' (I). On the way up to the resort they were staying at, Tracy's cable car malfunctioned and the actor was stuck in the life-threatening situation for some time. That evening the experience caused him to drink heavily and lose his temper. He threw his glass at co-star Wagner gashing his hand, an injury that can be seen in some scenes.
In the Italian dubbing, the "new silk rope" becomes a "new nylon rope"; this is due to the popularity of nylon ropes then in Italy, as they had been used in the recent 1954 Italian expedition to K2, which received lots of media attention in Italy at the time.