Trivia: Director Tyler Perry loves his cast so much that most of them are in all of his films. Besides changing up the main characters, he always finds a spot for his regulars.
Trivia: When Bumblebee first appears it parks itself in the used car lot beside a yellow Beetle. The yellow Beetle was Bumblebee's original form in the Transformers cartoon series.
Trivia: Shortly after the film opened in theaters, Samuel Adams Green filed a lawsuit against the film makers. He did admit to having a relationship with Baekeland but has stated that he has never had sex with her son and was not bisexual. He also stated that he didn't believe that Barbara did have sex with her son. She only claimed that she did because she enjoyed shocking people.
Trivia: In an interview, Jim Carrey admitted to being obsessed with the number twenty-three.
Trivia: When Keith Richards is looking up the rule in the pirate code book, the skull ring on his finger is not a prop; he has worn it since receiving it for his birthday in 1978 from a famous London goldsmith, who used a real skull when modelling the design.
Trivia: Smith tries to explain to the woman who Bob Marley is by singing a part of the song "I Shot the Sheriff." He also sang this part of the song (with a similar voice imitation) in his role as Will in one of the episodes from the series "Fresh Prince of Bel Air".
Trivia: The Korean woman whom Cris calls up during his magic act is actually the real-life wife of Nicolas Cage.
Trivia: A great deal of Flint Marko/Sandman's storyline was edited out of the film by the studio due to the long run-time. One scene early in the film showed that the scientists who accidentally created Sandman were racked with guilt when they discovered they might have activated the machine with a person inside of it. Another scene had Sandman visiting a doctor researching his daughter's rare disease whom he had been corresponding with in prison. Yet another scene showed him following his daughter in a park, and morphing into a giant sandcastle that she plays with. And finally, his daughter was going to appear in the final battle, and would appeal to her father to stop hurting people and living a life of crime to get money, as she accepted that she was going to die no matter what. Her words would be what convinced him to seek forgiveness from Peter for accidentally killing Uncle Ben.
Trivia: During the opening musical number, Tracy passes a man on the sidewalk wearing a trench coat who then flashes the crowd; this is John Waters, the writer and director of the original 1988 version.
Trivia: The infected identify each other and the uninfected by sense of smell.
Trivia: Near the beginning, when Remy is in the sewers and begins to make his way up to the skyline of Paris, he is startled by a barking dog in one of the apartments. If you pause and look at the silhouette of the dog, it greatly resembles Dug the dog, from the 2009 Disney/Pixar release Up - another precursory nod to an upcoming movie by Pixar. (00:16:35)
Trivia: In one of the letters that Gerry sends Holly about choosing a future career he says "and there's no such thing as a Vampire Slayer". Funny statement since one of the stars of the film is James Marsters, who is famous for his role as Spike in Buffy the Vampire Slayer.
Trivia: The costume department tried in vain to produce Luna's radish-like earrings. Evana Lynch made her own - they're the ones she wears in the film.
Trivia: The three main characters (Seth, Evan and Fogell) are actually based on the film's writers Seth Rogen and Evan Goldberg, and their close friend Fogell.
Trivia: At one point before the film was widely released, the studio was interested in remaking the film with a larger budget and more well-known actors, and including the original version of the film as a DVD "special feature." Thankfully, this idea was eventually shot down, and the original version of the film was released in theaters.
Trivia: In the scene at the supermarket, Danny is looking at a selection of DVDs, but when he puts it down to chase the thief, in the bin you can see the DVD named "Zombies Party" which is the Spanish version of Shaun of the Dead.
Trivia: The photo used on the newspaper clipping of Joe Kingman and his wife is actually a real photo of Dwayne 'The Rock' Johnson and his wife Dany on their wedding day.