Twenty Minutes into the Future: The narrator pointing out how in Looper, those are clearly 2010s model cars being driven in 2044, that according to Star Trek, "Nokia still has that shitty ringtone 250 years in the future" and that in Avatar, a film set in the 24th century, Ranger Rick is apparently still a relevant reference.
Ascended Fanboy: Anyone who gets their sin placed in the crowdsourced Iron Man 3 sins video.
Artistic License - Law: From The Wizard of Oz, "How can you order the removal of a dog without any investigation into whether or not it was in fact the same dog that did the biting? For that matter, how do you issue this order but then have the victim carry out the eviction?"
"The Prometheus school of running away from things." (After the Prometheus sins video, in which he described one of the characters trying to avoid a giant toppling structure by just running in the direction it was falling rather than dodging to the side).
This is exactly how Shaggy and Scooby would try and run from this thing.
"Garnish with a lit cigarette and enjoy!"
"Sh*t, there goes HBO." (Any time a satellite is destroyed)
"F**king Sprint." (Any time poor streaming is shown)
Compressed Adaptation/Adaptation Induced Plot Hole/Adaptation Explanation Extrication: Particular pet peeves of theirs, and often a big source of sins. To head off fan complaints of "It's explained in the book. Read it", most of their film adaptation videos contain the disclaimer "The Book Does Not Matter;" they critique films, and they believe if a movie cannot stand on its own or feels incomplete because of missing information, then it detracts from its quality, plain and simple.
Cuteness Proximity: In a filler video, they spell out that the number one difficulty with releasing videos isn't angry fanboys, apathetic casual viewers, or even the danger of copyright fiascoes. It's Wallace, an ordinary cat.
"This easily escapable basket is easily escapable"
Early-Installment Weirdness: In one of their first Sins videos for Prometheus, the voiceover was done by a different person than normal.
Mentioned in one of the fanmail episodes that there is another man that helps out the one in every other sins video, he just hasn't appeared on screen and that has been, so far, his only video.
Earworm: In-Universe, the tune that plays in the Conversations with Myself and Movie Recipes videos.
Ending Fatigue: invokedThe Return of the King has multiple sins dedicated to the fact that it goes through several ending-like points before the ship literally sails off at the end... then has one more.
Monster Clown: When a student in Prisoner of Azkaban uses a spell to turn something scary into something funny, she creates an even scarier-looking Jack-in-the-box clown.
Mood Whiplash/Dissonant Serenity: In What'$ the Damage?, the life and well-being of a human being is not assigned any monetary value "because that's just morbid". Bearing this in mind, if their horrible deaths have collateral damage, that is counted, such as when the T-1000 stabs an innocent man through the face... only to get interrupted by a CHA-CHING!! sound, charging the film two whole dollars for a wasted carton of milk.
My Friends... and Zoidberg: In Twilight, they make a point of noting that, "In general, 'cold ones' live in these vast countries, and this one very specific part of North America. Sure, if I'm worried about vampires in the Pacific Northwest, I go straight to the information about Egypt."
Called out in Man of Steel as well. Not because Superman broke his Thou Shalt Not Kill rule, but because they feel slightly insulted that an hour-long fight scene is topped off with a bloodless neck snap.
New Powers as the Plot Demands: Throughout Pacific Rim, they wonder why the various Kaiju and the Jaegers spend five minutes wrestling, before unleashing a never-before-seen ability and weapon that ends the battle in seconds?
No, Except Yes: As mentioned, "What$ the Damage?" doesn't assign a monetary value to your life and health. Unless you get punched in the face, in which case that'll be $6,000 for your rhinoplasty appointment.
The end of each episode is where the movie is given a "sentence". In earlier episodes, they all shared one sentence—"hell". In later episodes, the sentences became more unique and, instinctively, more hilarious.
Skewed Priorities: In Titanic, where despite the "unsinkable" ship heading straight to the bottom of the Atlantic and the passengers being rapidly evacuated to the lifeboats, a steward is more concerned about Jack and Rose breaking a door
"Is this guy really that clueless about the current situation?".
Cinema Sins Guy 1: 500,000 [subscribers], man. That’s really a lot of people. I mean, you have half a million fans. Cinema Sins Guy 2: Nah, they clicked a button.
They did genuinely thank their fans, though.
That Poor Car: In their Green Lantern video, they point out how every single car in the film has an alarm that goes off when someone slams into it... or that every single car in the film has an alarm at all.
Why Don't You Just Shoot Him?: In Pacific Rim, question why if the plasma guns are so effective against Kaiju, why they don't simply build long-range defense cannons aimed at the Breach, instead of giant wrestling robots who use them as a secondary weapon?