Trivia

The IV anesthetic that causes one to taste garlic (or onions) is sodium thiopental (aka by its trade name Sodium Pentothal).

The small car "the secret partner' gets into after first meeting Beldon is a 1957 Austin Metropolitan 1500 convertible.

The £15,000 offered Beldon as his "cut" would equate to about $42,000 at the time or over $417,000 in 2022.

One thing director and star shared was that each had changed his name upon entering the film business to avoid confusion with fellow artists. Granger was actually born James Stewart, but by the late 1930s, when it was obvious someone had already indelibly claimed that moniker, he switched to Stewart Granger.

Initially an actor, Basil Dear became a stage manager for director Basil Dean. Because their names looked so similar, Dear added "den" to his last name to distinguish him from his boss. Dearden and producer Relph formed a partnership early on that resulted in 29 films between 1946 and 1970, including several that drew international attention, such as Victim (1961), a groundbreaking film about homosexuality (also involving a blackmail plot though without the evil dentist); Woman of Straw (1964), with Gina Lollobrigida and Sean Connery; and the spy thriller/comedy Masquerade (1965). On his own, Dearden also helmed the big-budget historical action drama Khartoum (1966) with Charlton Heston and Laurence Olivier.

The airplane John is brought back from France on is a BEA Vickers Viscount 802, registration G-AOHV. Built in 1957, it changed hands numerous times over the years, with it's last known flight in 2009.