Other mistake: When Rambo gets killed, the lethal shell comes out of the right barrel, but in the earlier close-up on the villain gloating after maiming Rambo's legs, the right barrel was the one that already fired, smoke coming out of it. (00:32:40)
Revealing mistake: When the bad guy shoots Rambo in the leg (s), you can see the squibs detonate a split-second before the gun fires. (00:32:35)
Continuity mistake: Rambo disposed of the underlings, but a stronger opponent shows up. He sends Rambo reeling back against some drums, and raises his leg. In the next shot, his heel kick hits the drum, but A) the drum is not the same B) the distance is wrong, and judging by the first shot he would have dropped the heel on Rambo with no problems. (00:32:00)
Revealing mistake: The money delivery went awry, and Rambo is fighting the bad guys. He subdues one in armlock, but another charges at him using a lead pipe like a spear. It is rather obvious that the weapon is miles away from connecting to David Chiang's face, but the sound played is one of a hit, and he acts like that. (00:31:30)
Continuity mistake: When Rambo and Cheung sit down to begin explaining Tuba the situation, the lid on the instant noodles cup closes slightly on the second shot. (00:22:10)
Continuity mistake: In her first scene at the store, Joanne wears a sweater tied on her front. When she looks at Tuba picking cereals, it is tied in a different way compared to the rest of the scene (the sleeves are evenly matched, while elsewhere one is very short). (00:18:25)
Continuity mistake: Scene with the new store manager and love interest; Tuba pantomimes 'testing the water in the shower'. He puts his hands in his pocket when he realises that someone is glaring; that's in the first shot, because his hand is frozen in mid-air in the next shot instead. (00:18:10)
Revealing mistake: The chairman parks his car in front of Bel Fuse Ltd. And goes upstairs. His car explodes, but does it in front of a different building, probably switching to a stage building front; the metal doors don't have vents anymore and there are visible join lines in the asphalt and the cement. (00:15:10 - 00:15:40)
Continuity mistake: When the assignment officer puts the papers inside Cheung's holster, he reaches for the holster (and grabs it) twice. (00:14:50)
Continuity mistake: As Tuba's story about the folk-dancing at the funeral becomes exponentially more ridiculous, the man in the pink shirt tries to convince his wife, but there's a clear lack of continuity in his movements between the various cuts. (00:11:15)
Continuity mistake: When Tuba's poor friend protests because his pretend-folk-dancing has been overlooked, the pretend-fisherman is suddenly fishing with his chopsticks in his bowl, while he was not doing anything a moment earlier. (00:10:50)
Continuity mistake: When Tuba's friend drops the strainer to have a quick exchange under the table, the strainer falls next to the table's leg, but the unattractive girl picks it up from Tuba's left (the leg is at his right). (00:09:20)
Factual error: Tuba pranks the store manager while he is reading adult magazines. One of them though (the one he is holding) is the August 1985 issue with Angela Nicholas on the cover. The previous scene took place at the Hong Kong Marathon of 1985, in January.
Continuity mistake: When the van crashes into the stage at the marathon, the crash happens in two separate takes, as you can see by the position of the guy in a light blue jacket, who dodges the incoming vehicle with radically different timing in the two shots. (00:03:20)
Continuity mistake: In the wild stun where Rambo Chow jumps through the cracked windshield into the moving van, in the first take the stuntman doesn't quite land right into the windshield (in fact he hits the frame in a way that could possibly break a hip) and his body bends awkwardly, but in the next shot you see him slide in smoothly. (00:03:15)
Other mistake: The gag where Tuba draws a lion that initially seems something else is actually pretty funny, but also obviously impossible since the zoom level of the CCTV camera changes entirely throughout it to be able to show in detail what he's drawing. Also, Sammo Hung's denim jacket always covers his arms all the way to his wrists when he's on camera, but the person sketching in the close-ups shows the sleeves of a khaki shirt. (00:17:40)
Continuity mistake: David Chiang chases the man in a purple dress at the 1985 Hong Kong Marathon. He fires a warning gunshot; if you look at the guy in the back of the pick-up that the criminal is about to hijack, he lets go off the bar twice in two different shots. (00:02:35)
