Corrected entry: When the man at the beginning of the movie is shot, the bad guy attaches a silencer onto the gun, but you can hear a very loud bang when the trigger is pulled.
Cannibal Ferox (1981)
1 corrected entry
Directed by: Umberto Lenzi
Starring: Danilo Mattei, Giovanni Lombardo Radice, Lorraine De Selle, Zora Kerova
Revealing mistake: When Joe has died of blood poisoning there is a close up of his head and neck, you can see him breathing and his eyes flicker.
Pre-credits disclaimer: The following feature is one of the most violent films ever made. There are at least two dozen scenes of barbaric torture and sadistic cruelty graphically shown. If the presentation of disgusting and repulsive subject matter upsets you, please do not view this film.
Correction: It just depends what version you watch. In the UK Vipco version its a loud bang and most of the sound effects are bad. In the Ultrabit edition the SFX are state of the art and a loud silenced bang is heard. It's all down to quality of the version.