TedStixon

Revealing mistake: If you look closely, you can see the strings moving the Ouija board planchette while it's floating in the air towards Medea. (It's easier to spot them on the high-definition Blu-Ray version, but they can be faintly seen in other versions of the film if you know where to look).

TedStixon

Revealing mistake: When Pazzi is killed, there's a shot of his cell phone and phone battery slamming into the ground followed by a splatter of his innards. However, there is a (rather obvious and poorly timed) jump-cut in the middle of the shot, right before his innards splatter down from above. His cell phone is still moving about a bit, when suddenly it goes perfect still in an unnatural way. It also moves ever-so-slightly to the left when the cut happens. It's supposed to appear to be one continuous shot, but it's clear they dropped the cell-phone, waited for it to settle, then dropped the innards and tried to edit it so the shot moved faster.

TedStixon

Revealing mistake: When the mutants all run to Xavier and the helicopter towards the end of the film, it's blatantly obvious the actors were filmed running on a green-screen and then comped into the scene. The lighting on the actors doesn't really match the background, and somewhat more noticeably, they also don't cast any shadows on the ground.

TedStixon

Revealing mistake: During the scene in which Rasputin is resurrected, at one point, Ilsa wipes some snow off a wall then checks her book to see if she can match a symbol. When she opens the book, some snow lands inside of it... and it is incredibly obvious that the snow is fake. It looks like pieces of torn up paper.

TedStixon

Revealing mistake: During the Scorpion VS Sub-Zero fight, at one point, Scorpion kicks Sub-Zero and he almost falls into a lava pit, falling and wedging himself next to a stone pillar. (It's the bit where Liu has to jump across to save him.) When he hits the stone pillar, it wobbles like it's made of styrofoam, revealing it's not really stone.

TedStixon

Revealing mistake: When Hellboy is seen filing his horns towards the beginning, as he runs the file along them (right before Broom takes the file), the prosthetic horn stumps are moving up and down unnaturally for a moment. As they are meant to be protruding from his head, they shouldn't be moving up and down as he moves the file back and forth.

TedStixon

Revealing mistake: When the elevator crashes down and Hellboy wakes up and starts to move, the prosthetics on his head move unnaturally around his horns and forehead as he gets up, revealing they aren't real.

TedStixon

Revealing mistake: After Jean kills Charles, Jean's house (which is suspended in the air) crashes downwards. Watch the scene very closely, and you can see some minor slip-ups in the computer rendering that give it away as a CGI shot. For example, some of the debris on the walkway in front of the house vanishes after landing. A very small piece of debris on the walkway is also seen "popping" upwards for no reason after having sat still for several seconds. Also, right before the shot ends, a few piece of debris in front of the middle window on the roof begin to flop about before flipping upwards in defiance of gravity. There are also several other minor issues with the shot. (Jean is no longer using her powers once the house falls, so this can't explain it).

TedStixon

Revealing mistake: During the opening chase scene, there's a few shots where Nick and Chris are running towards camera from gunfire in a few alleyways before they fall through a door. There's two shots where you can see bullets impacting the walls all around them, but if you look in the background, there's nobody there actually firing at them until a few people run into frame at the end of one of the shots. The bullets impacting the walls around them are literally impossible from this angle. Furthermore, during this scene, you can tell from the angle at which the bullets are hitting the wall that there's at least a dozen different shots that should have hit and killed Nick and Chris, but they escape completely unscathed. The staging of the shots is very poor and makes no sense.

TedStixon

Revealing mistake: Throughout the final fight between Pyramid Head and the Missionary, you can tell that Pyramid Head's mask and sword are very light-weight and made of rubber or another soft-material. Ex. When Pyramid Head hits Missionary out of the arena with the hilt of his sword, in the wideshot, if you look through the flames, you can actually see the sword bobbing about in the air before the tip hits the ground as the actor can't keep it steady.

TedStixon

Revealing mistake: During the final fight, when the Missionary is "sawing" through Pyramid Head's metal helmet, if you look closely, the helmet has been pre-scored and that the actress playing the Missionary is just running the blade along the pre-cut line in a "sawing" motion. The "metal" of the helmet also blatantly bends like rubber during the moment, revealing it's not really metal.

TedStixon

Revealing mistake: When the train crashes and then explodes during the climax, there's several major flaws that give it away as a pretty obvious and unconvincing miniature. First, the scale of the fire and sparks aren't right at all. Second, the cars it crashes through in the parking garage don't move normally or receive realistic damage when they're impacted, giving them away as very small plastic models. (You can see at least two cars simply being shoved along unnaturally.) And finally, when the train-car explodes, if you watch carefully during the second shot, you can see the (supposedly concrete) ground ripple briefly in an unnatural way at the start of the shot, and even see the train car wobble at the end of the shot, again very unnaturally, as the pyrotechnics make the small-scale model move.

TedStixon

Revealing mistake: When Logan slices his abdomen open to pull out the parasite around his heart, watch the (digital) wound at the bottom of the screen right before he says the line "You're not gonna wanna watch this part!" Not only does a small line of blood on the left of the wound simply "blink" into existence instantly at the bottom of the screen right after he pulls the claw out (slip up in rendering), but the wound itself doesn't quite 100% match up with Logan's movements - when he breathes in, the wound doesn't really move properly with his abdomen as it inflates.

TedStixon

Revealing mistake: When Walter Donovan is dying after drinking from the wrong cup, watch the over-the-shoulder shot where we see his hair grow long suddenly - for some reason, this shot was filmed in reverse, as the fire coming from the candles/torches behind Elsa is not burning upwards, but appears to be "sucking" back downwards.

TedStixon

Revealing mistake: Throughout the final fight-scene, anytime Wesley Snipes' face is not on camera, you can often tell that Blade is played by a stunt-double. The double is a bit thinner than Snipes, which gives it away.

TedStixon

Revealing mistake: About 27 or 28 minutes into the film, right before the giant creature flies out at Roger through the doorway, you can see the wall (part of a film set) "wobble" for about a half second as Roger opens the door.

TedStixon

Revealing mistake: When the Ferret's goons are dragging Chev behind the speed-boat near the end, when the one henchman (with all the tattoos) urinates on Chelios, you can see he is holding a small device/hose that is spraying the fake urine out.

TedStixon

Hundred Dollar Baby - S2-E5

Revealing mistake: During the training montage, right as Mac is about to smash the bottle over Charlie's head, you can see Charlie stop what he's doing about a half-second before being hit, and brace himself for the impact, despite not being able to see it coming. This is confirmed on the DVD commentary.

TedStixon

Revealing mistake: When Arthur chops off the Black Knight's first arm, you can see his blade does not slice through the arm, but rather just bumps into the arm, which proceeds to fall off, revealing a fake prop-arm was used.

TedStixon

The Gang Gets Held Hostage - S3-E4

Revealing mistake: When Liam is stabbed in the arm, as he turns around to walk away, you can see the outline of his real arm wrapped behind his back, under his robe for about one full second, revealing that the arm he was stabbed in was a fake prop-arm.

TedStixon