Continuity mistake: Ben Bart passed away earlier in the film but can be seen dancing on stage with the character Gertrude, at a James Brown concert where he is performing "I Got Soul (Super Bad) ". (01:46:00)
Suggested correction: During that sequence, they intercut James in his gold jumpsuit, with long hanging-down hair, and James in a black-and-white checked vest, doing the same song. In the black-and-white vest era, Ben Bart is still alive, so the dancing could have been from that era.
While that does seem to be the case, it should be pointed out that Ben Bart died in 1968, but the song James Brown is singing, "Super Bad", was recorded in 1970.
Factual error: In the first scene of the film the girls are shown in a flashback playing with the Ouija board. When one of them holds the planchette up to the other one, the underside of it has text saying "© 2013" molded into the plastic, even though the scene is based years before that. (00:01:20)
Continuity mistake: Hercules and Tarak are sitting together talking and Hercules pulls out the necklace that his lover gave him as he reassures Tarak that he will get them to Greece. In one shot he is looking down at it in his hands, then the next shot his head is suddenly leaning back against Tarak. (00:37:45)
Factual error: When Jess meets her father and Martin on the embankment it is twenty to five in the afternoon, however this is between New Years Day and Valentines Day - it would be dark at this time of day in these months.
Continuity mistake: When Seth Rogen, Rose Byrne, and his friend are talking to the fraternity brother to have him wear glasses to get evidence of their hazing, Rose Byrne sticks her fingers in the whipped cream of the guy's sundae and licks her finger. In the shot from behind, she sticks her index finger into the whipped cream. But she licks it off her middle finger.
Continuity mistake: Meghan is at the initial meeting with the TV execs. During the scene, the pens in front of the various board members change position between shots, and in the cut that follow her suggestive "hold them steady" hand-pumping, the woman with the light brown sweater is first with her hands off the table, then suddenly on it. (00:03:15)
Revealing mistake: When we see the funeral, the coffin is lying on wooden planks across the grave as it should be. However, the green sheet is perfectly flat, but not stretched, showing there is no hole under the coffin. (00:45:00)
Continuity mistake: Maddie and Taylor are talking about Maddie being over her previous fiance (that Taylor knows of). Taylor has the hair on her right side tucked into her jacket, but next time the camera is on her, her hair is neatly arranged over the shoulder. Similarly, her hair on the left shoulder changes position between shots just before Maddie drags her out to meet their plus-size friend. (00:06:20)
Factual error: In a first season scene that takes place at The Max, Kelly Kapowski is wearing sandals; Kelly never wore sandals on the show until the 3rd season at the beach club.
Visible crew/equipment: When Major Carver gets in his car to chase after "David", the entire camera crew is reflected in the side of the car when it's reversing.
Factual error: About 20 minutes in, the group find a Welsh miners' group in the phone book. The character who is making the call speaks the first two digits of the phone number: "0, 1,..." The movie is set in 1984, when the dialling code for that district was "0639" In that year, "01" was the code for London, not Wales.
Character mistake: When Mr. Rogue is spinning the globe to assign countries to the students he spins for Albert Morio, and he puts his finger just west of North America and says "Lebanon." Lebanon is in Asia, slightly northeast of Egypt and we can see Egypt on the globe on the other side of where his finger is at. He's nowhere near Lebanon.
Continuity mistake: The Judge and son are standing by the side of the road and there's a black bag on the ground between them. When they leave there is no bag on the ground.
Continuity mistake: After cutting through Black Manta's gun, Aquaman then slams Manta in the face with his trident and knocks him down. As he is twirling his trident in victory, you can see his belt and its design. But then it cuts to a close up of Aquaman and suddenly his belt changes in design with the bar in the middle disappearing and the black of his pants extending further up onto his orange shirt in the belt area. (00:03:50)
Factual error: The helicopter flown is a Bell 407. The movie is set in '88 and the first flight of this type was 1994.
Character mistake: At the end of the movie, when Jaggu is listening to the sounds recorded by PK, the audio contains the question which she asked, "Tumhare planet pe sab aise hi hote, bade kan wale?" but does not contain the answer which PK gave, even though he was sitting right there. This seems to suggest that PK did not exist in the real world.
Visible crew/equipment: In the scene after Petyr's death, Deacon is standing in front of a table and the window directly above the table is shown. At that point, you can see a boom mike being yanked out of sight. I know this is supposed to be a docudrama, but this is the only place equipment is shown in the entire movie.
Suggested correction: You said it yourself, it's the boom mic of the documentary crew. They make no attempts to hide the fact that it's a documentary.
Continuity mistake: Chilling on the couch watching a movie, Jay's friend farts. Obviously well practiced in the discipline, it takes her merely moments within the same shot to perform the necessary adjustments after the emission and place her index finger back on the dainty seashell lid of her media device. But in the next shot, as she proudly smiles basking in the warm glow of her successful feat, her finger is off the lid. (00:07:00)
Continuity mistake: Nicole is in Tina's house, asking Matthew about the baby teeth. Trouble is, this scene is after Nicole has been kidnapped and locked in the van. (01:27:20)
Continuity mistake: When the car with Alice goes over the cliff, and when she then exits, she is wearing shoes. When she awakens and begins climbing (and afterward), she has none.