Revealing mistake: When Anguirus makes his sacrificial charge against Gigan, the hand that is moving the Anguirus costume can be seen holding it.
Godzilla vs. Gigan (1972)
1 revealing mistake - chronological order
Directed by: Ishirô Honda, Jun Fukuda, Yoshimitsu Banno
Starring: Hiroshi Ishikawa, Minoru Takashima, Yuriko Hishimi
Revealing mistake: When Anguirus makes his sacrificial charge against Gigan, the hand that is moving the Anguirus costume can be seen holding it.
Kubota, Head of Children's Land: Chairman. Godzilla has just arrived.
Fumio Sudo: His appearance is a necessary part of the plan. We have to attract him here, and then we can kill him.