The boulder was made of fiberglass. A large net was kept open on the ledge of the pool so that if the boulder went over the pool, it would not continue down the hill into the village below. Additional shots involving the boulder were created digitally.
The conversation in the kitchen between Gal and Don originally took place in the living room, but the director decided that a more domestic and less formal setting would be more effective. Also, the shot where Don kicks the cabinet doors was done in only one take; the director decided that coverage wasn't necessary.
Ray Winstone traveled to Spain two weeks before filming commenced to get as deep a tan as he could in the time possible and to eat as much as he could to bulk up considerably. He called it "the best rehearsal time I've ever had in my life".