Quentin Tarantino was offered the role of Guy Lapointe, but turned it down saying he dug the script and "couldn't wait to watch Michael Parks let loose his internal Kraken," but he had no interest in acting at the moment.
Smith told his Twitter followers to tweet "#WalrusYes" if they wanted to see their hypothetical turned into a film, or "#WalrusNo" if they didn't. A vast majority of Smiths following agreed that the film should be made.
The post on Gumtree (where a homeowner was offering a living situation free of charge, if the lodger agrees to dress as a walrus) was in fact a prank post by noted Brighton poet and prankster Chris Parkinson, a fan of Smith who hoped to get in touch with him. Kevin Smith eventually hired Parkinson as a producer.
During the restaurant scene with Guy LaPointe (Johnny Depp), the characters discuss the previous murder of a hockey coach called Gregory Gumtree. This is a reference to the British Craigslist type website called Gumtree which is where Kevin Smith saw the original prank advertisement on which he based the script for this movie.
The Gimli Slider restaurant's name is based on the Gimli Glider, an Air Canada plane that took off without the full load of fuel it was scheduled to get on July 23, 1983. Its two pilots had to glide it down without power for an emergency landing at Gimli Industrial Park Airport.
Word "chuffa", used by Michael Parks' character in his dialog with Justin Long's character, was used by Bruce Willis in reference to what he thinks are unnecessary scenes during the filming of Cop Out (2010). Justin Long and Kevin Smith co-starred with Bruce Willis in movie Live Free or Die Hard (2007), Haley Joel Osment in The Sixth Sense (1999) and Michael Parks in Planet Terror (2007) and Grindhouse (2007).
One of the primary filming locations, The Cramer Mountain Country Club near Charlotte North Carolina, was the site where the perpetrators of the 1997 Loomis Fargo Robbery purchased a mansion after the robbery. Much of the movie was filmed at the adjacent golf club.
Greg Nicotero was the first choice to create the special effects, particularly the walrus suit. Smith states on Smodcast Episode 259, that he knows how much Nicotero loves the movie "Jaws", to the point that Nicotero even constructed a real 25 foot replica of the shark 'Bruce' in real life for fun, and would jump at the chance to create something similar. Nicotero turned down the job due to commitments with "The Walking Dead", and recommended his friend and former partner Robert Kurtzman.
Ponder rock, where Howard Howe gets stranded, is a reference to the podcast "Smodcast #224: Ponder Rockin' with Emo-Kev", posted September 16, 2012. Kevin and Scott talked about a cassette tape Kevin found in which he dictated his banal thoughts when he was 19 years old.
The inspiration for Teddy and the "Not See Party" podcast comes from Smith's friend and fellow "Comic Book Men" cast member Walt Flanagan. Flanagan has stated many times that he will never travel by plane, and rarely leaves the state of New Jersey for any events.
Wallace mentions AMC contacting him in regard to his popular podcast. This is the reference to the fact, that another SmodCo podcast "Hollywood Babble-On" co-hosted by Kevin Smith and Ralph Garman (Frank Garmin in Tusk), shoot TV-show pilot on AMC. "Comic Book Men" reality TV-series about Kevin Smith's comics book store is also shown on AMC.
The "Kill Bill Kid" is based on "Star Wars Kid", a then-teenager (from Quebec, Canada) of whose video of him wielding a golf ball retriever like Darth Maul from the Star Wars series spread online and became a subject of ridicule. The suicide of the "Kill Bill Kid" is presumably based on Amanda Todd, a Canadian teen who also committed suicide after being bullied at school and online chats.