Peter Cushing and Bernard Cribbins spent a day at Chessington Zoo learning to ride camels. They bonded over this and a mutual love of birdwatching.
Ursula Andress was re-voiced by Nikki Van der Zyl, the same actress who dubbed her voice in the James Bond movie Dr. No (1962).
Following the success of this movie, Hammer was keen to re-team Ursula Andress and John Richardson for One Million Years B.C. (1966), but Andress refused, and the role went to Raquel Welch.
The desert scenes were filmed in Israel.