Sammo

Revealing mistake: When Casey Jones gets off the garbage truck he rammed the fire escape stairs with, he punches two ninjas, but they go down (especially the first) before his fists connect (or rather don't connect). (01:21:10)

Sammo ★

Revealing mistake: Michelangelo dodges the axe a Foot clan member swings at him by hiding his head into the shell. When he knocks his assailant out with a backhand, you can see a large gap between the mask and the rest of the suit. (01:17:30)

Sammo ★

Revealing mistake: In the middle of the fight inside April's apartment, there's a comedy/action bit with Leonardo repeatedly trying to slash at a Foot Clan soldier. Ultimately, he fools him and kicks him. Behind him, another two bad guys arrive, but there's a very awkward bit in the choreography where one of the guys quite literally does not know where to go and puts himself in a corner with nobody there, stumbling into the other. (00:43:30)

Sammo ★

Revealing mistake: Shredder is enraged because April O'Neil mentioned the Foot clan. He throws a knife at the screen, with an effect that is not only transparent in how fake it is, but shows cracks with secondary circular holes like it was sprayed with bullets. (00:18:05)

Sammo ★

Revealing mistake: When Raph trips the two purse snatchers, the second one doesn't come anywhere near connecting with his leg. (00:11:40)

Sammo ★

Revealing mistake: When Don tries to be hip shouting "Bossa Nova!" at the back of his open mouth you can spot the white of the teeth of the actor inside him. (00:05:40)

Sammo ★

Revealing mistake: When the Turtles make their triumphant entrance jumping in frame after the logo, at the bottom of the screen you can tell they are wearing white socks/shin guards, except Raphael who is the one the camera is focused on. (00:05:30)

Sammo ★

Revealing mistake: In the first, unseen, appearance of the Turtles in the movie, Raphael saves April breaking the streetlight with his sai. The lights go out a good second after the bulb is supposedly shattered, though. (00:03:55)

Sammo ★

Revealing mistake: In the opening of the movie, a citizen is reading his copy of the New York Post and you can actually read the date; Wednesday September 12, 1990. It is obviously a movie prop though, because the scene was shot in late 1989. How can you tell? Easy; he is reading it next to a newsstand kiosk full of magazines from that period; instantly recognizable are Vanity Fair's November 1989 issue with Baryshnikov on the cover, and GQ from December 1989 with Sting sporting an epic 'stache. (00:00:50)

Sammo ★