The film was skewered in The Magic Sword (1992). In the "Mystery Science Theater 3000 Amazing Colossal Episode Guide" book, the show's creators admitted that "this is actually a pretty good movie."
Although Richard Kiel doesn't feature in the screen credits, the "Variety" review dated April 11, 1962 provides a cast list that includes "Pinhead No. 1" played by "Dick Kiel."
In addition to her credited role as "The Hag," Maila Nurmi also played the sorceress who kidnaps Princess Helene.
Stuntman/actor Leroy Johnson's (Sir Ulrich of Germany) dialogue was dubbed by voice specialist Paul Frees.
Ross Wheat is listed in the credits as "dragon trainer."