A nameless member

Revealing mistake: When Paul Kersey blows up the restaurant, there are obvious dummies in the booth. (00:46:01)

Trivia: Right after Mr. Peck the EPA man forces the Ghostbusters to shut off the grid and the energy is released into the sky, an ad for Stay Puft can be seen on a building. (01:09:00)

Continuity mistake: When Joey crashes the tow truck into Lamanski's restaurant, the camera cuts over and a payphone that was on the wall disappears. (00:24:57)

Revealing mistake: When Martin Lamanski's limousine crashes into the gasoline tanker truck there is nobody in the car. (01:14:01)

Trivia: The satellite that Superman and Zod hit during their final battle says Wayne Enterprises, ie. Bruce Wayne's company. (02:06:20)

Rydersriot87

Continuity mistake: In the scene at the academy when Martin Lawrence caught the instructor and his car gets loose, just before the car hits and explodes, you can see that the car has had its light bar removed. (00:09:40)

Visible crew/equipment: When Ricky is shot through the chest, the blood pack is visible bulging through his shirt. (01:28:30)

BillyBlake

Continuity mistake: When Admiral Marcus' ship appears in front of the Enterprise after coming out of warp, a set of panels begins to close over the main deflector dish. In the next shot, when looking out of the Enterprise's viewscreen, the deflector dish is fully visible again. (01:13:05)

wizard_of_gore ★

Revealing mistake: When Pete gets his throat slashed, you can plainly see that there's no actual cut, it's just a line of stage blood. (00:26:30)

Revealing mistake: When the Russian pod is launched, a wide shot shows the Monolith at top/right with Jupiter in the background and both the Leonov and Discovery at bottom/right with the pod nearby. Just before this shot ends, all three spacecraft vanish, leaving only Jupiter and the Monolith for a very short but obvious moment. (01:04:35)

johnrosa

Revealing mistake: During the scene where Arnold's character is escaping from the mansion at the beginning of the movie, there is a part where he is running down a snowy hill through trees. At one point during the hill scene, Arnold does a flip head first. When he lands the flip, you can clearly see the stunt double's face as he turns to shoot at more bad guys. (00:13:30)

Continuity mistake: Notice King Willies teeth before he is killed. They are nasty looking. After the predator cleans up his skull, the teeth are white and shiny and also change size. (00:47:00 - 00:49:00)

Continuity mistake: Marcone goes into the parking lot, notices the white BMW, and shoots out the rear passenger window. The front window is now perfectly intact when previously it was shot at during the limo chase. (01:21:05 - 01:31:15)

Trivia: During the street race against the Asian brothers, Lane nearly runs over several nuns crossing the street. If you look closely you can see one of the nuns carrying a large ghettoblaster on her shoulder.

Continuity mistake: When Tommy Tong breaks Jarrel's stick, the broken part of the stick differs between shots. (00:33:40)

Mortug

Trivia: Even though Frank the pug doesn't appear, there are a couple of references to him. The first one is a big picture of him over J's bed and when J gets pulled over by the cops, there is a billboard advertising for "The Amazing Talking Pug." (00:22:35 - 00:40:25)

Rydersriot87

Trivia: When Agent J returns to MiB after being suspended, you see him pass the big screen with the aliens that are being watched. Two of them are Bill Gates and Lady Gaga. (00:20:15)

Anastasios Anastasatos

Continuity mistake: When the movie starts and Herman is launched outside the park, the rattle balls on the bars disappear. (00:01:25)

Sacha ★

Continuity mistake: When Starsky and Hutch chase a guy you see Hutch throwing him into a fence so that his cap drops to the ground beside him. When the shot changes his cap has moved to in front of him. (01:09:45)

Mortug

Continuity mistake: Starsky and Hutch are both called in to the boss' office after robbing a bookie and destroying a Cadillac's roof. When Hutch walks into the office, the top drawer on the right side on the boss is closed. But when the shot changes to the boss when he starts talking to Hutch, the drawer is open. (00:05:20)