Michael Caine confessed in his biography that director Joseph Losey was so serious, without smiling, that Caine took the bet with the crew that he would make Losey laugh before the end of the shooting. Caine eventually lost his bet.
Michael Caine confessed in his biography that he did not like love scenes after lunch when the leading lady had eaten garlic salad. However, he did say that Glenda Jackson was the most professional actress he had ever worked with. Director Joseph Losey also praised Jackson's versatility and professionalism, but said that she had been "a bore to work with".
Helmut Berger and Glenda Jackson hated each other at first sight on the set. But they behaved very professionally on the shooting.