Factual error: The training set piece is supposedly Japan, but it's obviously taking place in the Philippines. Its biggest giveaway is the presence of Taal Volcano. (00:02:55)
Enter the Ninja (1981)
1 factual error - chronological order
Directed by: Menahem Golan
Starring: Franco Nero, Christopher George, Susan George, Sho Kosugi
Deliberate mistake: After the black ninja and white ninja clash swords for the first time, the black ninja pretends to put his sword in its sheath, which is slung over his back, rather than actually doing it.