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Revealing mistake: The "semen" that drips off the turkey baster is painfully obviously CGI. It doesn't quite match the movement perfectly and looks incredibly "flat".

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Revealing mistake: When Tiffany is using the turkey baster to inseminate Jennifer, you can tell she's not squeezing the baster, and yet, it's "squeezing" on its own. (Likely it was impossible for the puppet to properly squeeze it, so they had it rigged to squeeze on its own.)

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Revealing mistake: When Chucky is walking behind Tony Gardner as he's removing Tiffany's back in the VFX room, you can tell Chucky has been composited into the scene poorly. Watch his feet, and you can sort-of see that he has a slightly "wobble/slide" to his movement where the blending of the two shots didn't quite work. The lighting on Chucky also doesn't quite match the background.

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Revealing mistake: When Glen enters the child's room in the dream sequence, look out the window behind the rocking horse. There's an odd, unnatural stream of water firing diagonally among all the rain. (Likely some sort of flub with whatever sprinkler system they're using to create the rain on the windows.)

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Revealing mistake: When the mother slips and falls out of the bathtub, there's a very clear jump-cut while the camera is facing the side of the bathtub. Instantly between cuts, the pattern of the water droplets changes, even though it's supposed to all be one continuous, unbroken shot. This reveals that it was pieced together from multiple different takes.

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Revealing mistake: When the father gets stabbed in the dream sequence and falls over the railing, you can tell there are multiple jump-cuts in the shot, even though it's meant to be one continuous, unbroken shot. It's especially noticeable when he lands, and several broken pieces of wood simply "appear" around him between frames.

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Show generally

Revealing mistake: During "A Man's Gotta Do", when Captain Hammer kneels down and crushes the gizmo on top of the van, you can briefly catch a glimpse of a black safety cable next to his knee.

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Revealing mistake: When Richter's arms get cut off and he falls down the elevator shaft to his death, you can very obviously see the outlines of his real arms inside his shirt when his leather jacket flies up as he falls.

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Revealing mistake: During the car chase, when Mario and Luigi have the cops on either side shooting the guns, Mario screams "Brace yourself, now!" When he says this, you can quickly see Mario and Luigi have been replaced by stunt drivers. Also, Mario's mouth isn't moving. It happens quickly, so slow motion helps, but isn't required.

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Revealing mistake: When Mario and Luigi's police car drives off the civilian's car they're stuck to the top, you can blatantly see a metal special effects line that's pulling their car down.

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Revealing mistake: When the old lady falls into the car, she blatantly turns into a dummy for a few shots. (She literally doesn't move at all and is unnaturally stiff.)

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Revealing mistake: When Mario and Luigi first arrive in "Dinohattan" and fall through the railing, you briefly get a clear look at Luigi's stunt-double, who appears to be a bulkier man who looks nothing like John Leguizamo. It goes by quick, so it can be hard to see, but once you notice, it's obvious.

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Revealing mistake: When Daisy takes Luigi to the dig site, there's a long wide shot as they talk and start to head down. As the camera zooms in, you can see the composited background (the bridge, city, etc.) "jiggle" slightly towards the end of the shot where the composite effect didn't quite align up.

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Revealing mistake: When Ritchie tackles Sam down the stairs, you can get a pretty clear look at both the stunt-man and stunt-woman's faces as they fall. They then switch back to the actual actors once they reach the bottom of the stairs.

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Revealing mistake: When Jason is getting stabbed to death, there's a quick 2-second shot showing him being stabbed repeatedly in the stomach, with part of his intestines hanging out. But if you pay close attention, there's no actual damage occurring with any of the stabs, revealing it's just an effect. Likely either a collapsible prop knife or a CGI knife being stabbed into him.

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Revealing mistake: In the opening, when Daisy's mother pushes the beam and causes the cave-in in the mine, for a split second, you get a pretty clear shot of Koopa's stunt double, who is taller than and looks nothing like Dennis Hopper. He's only on-screen for about a half-second, but it's very easy to notice it.

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Revealing mistake: When the meteorite strikes the Earth at the beginning of the film, there's an odd slip-up in the effect. About a half-second before it hits, you can sort of see it awkwardly shift slightly to the right for a split second. It's hard to catch, but once you see it, it's fairly noticeable.

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Revealing mistake: Throughout the entire film, it's quite obvious that most of the "snow" is fake. It just doesn't quite look right. It often resembles mashed potato flakes or Christmas tree flocking instead of real snow.

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Revealing mistake: When Jack is melting after being showered with acid, at one point, there's a very obvious cross-dissolve used to blend two shots into one as Jack is reduced into a skeleton. It almost works, except suddenly, the snow around him is slightly different. (Some impressions into the snow and whatnot appear during the fade that shouldn't, as does a few pieces of debris.)

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Revealing mistake: When Jack is being showered with the acid, you can tell that they had the actor lying down, dropped the liquid on him from above, and simply tilted the camera onto its side. The way it sprays "sideways" is incredibly unnatural.

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