These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Bad Movie Beatdown
Broken Base: The Sucker Punch review is either a hilarious ripping of a pretentious movie, or one Double Standard joke after another over a decent, if unexceptional film. Many blame JesuOtaku's involvement (she's credited as a primary writer) for this.
8.8: He got a bigger backlash than Equilibrium for giving Transformers: Revenge of The Fallen a better written review than Inglourious Basterds (Although Matthew gave it a good score as he went in expecting a movie where tons of things blew up, which is what he got). He eventually changed his opinion on it when he did the video review of the movie.
Growing the Beard: Film Brain's general setup hasn't changed, but there's a general change in focus from the early episodes and especially following the hiatus. His voice has got more relaxed and his Screenwipe influence has become more obvious.
The hate for him over panning Equilibrium is a weird one, seeing how the film was critically panned when it was first released (Entertainment Weekly even called it a complete ripoff of The Matrix) and it's a mild Cult Classic at best.
He also gives nods to the reaction in later reviews.
It happened again after he gave a lower rating to Inglourious Basterds than the aforementioned Transformers: Revenge of the Fallen.
In a subversion, he reviewed Seven Pounds expecting controversy to rival Equilibrium, only for most of the comments to agree with him on how disturbing and manipulative the movie was.
It's happened yet again with his review of Pirates of the Caribbean: At World's End, despite the film having already gotten mixed reviews. He did try to stem this by having Welshy do a counterpoint to the review to display some of the legitimate arguments that could be made against his, while still giving his honest opinion on the subject.
Film Brain got some fire from James Bond fans who felt he was extremely unfair with Die Another Day, and many argued that Quantum of Solace was a much worse movie (although, many other Bond fans would agree with him).
Lampshaded/spoofed in his Cross Over with Obscurus Lupa, where she claims to be the most annoying person on the site. Matthew replies that her graph is America-only, going worldwide he still wins.
Professor Celluloid seems to have few fans, which is probably why he's seen less in later episodes. Buck has also said the reason the character is rarely seen, is to avoid accusations of being a Dr Insanorip-off.
Lampshaded in the Spy Kids 3D: Game Over review when FB tries on Celluloid's glasses (which have crossed eyes printed on the lenses) in preparation for the film's 3D segments.
Film Brain: Wow, I look like an idiot!
The Woobie: Borders on this in his Transformers: Revenge of the Fallen review, when he breaks down upon seeing the infamous "enemy scrotum" scene, having an especially hostile Spoony call him out on his original written review of the film, and realizing his mistake while Spoony sarcastically speculates on the symbolism of the aforementioned scene.