Factual error: Melanthius claims to be friends with Archimedes, who died in 212BC. Yet the movie must be set after the birth of Mohammed, in 570AD, as it contains references to Islam. Only out by at least 783 years.
Sinbad and the Eye of the Tiger (1977)
1 factual error
Directed by: Sam Wanamaker
Starring: Jane Seymour, Patrick Wayne, Margaret Whiting, Taryn Power
Continuity mistake: When Trog is killed while battling the oversized tiger, his body falls onto the steps inside the pyramid. Moments later when Sinbad takes over the battle, Trog's body is gone.