* Music in the opening scene is from ''VideoGame/TheLegendOfZeldaALinkToThePast''. In the following scene Young Neil is playing the game on his NintendoDS Lite.
* Scott Pilgrim wears a ''Music/TheSmashingPumpkins'' T-shirt during the first scene. Initials are both SP.
* Sound effects after Scott first mentions Knives's name are from ''Link to the Past'' on Young Neil's NintendoDS Lite.
* Stephen Stills' living room features a ''Guitar Wolf'' poster on the left.
* The first song Scott Pilgrim suggests Sex Bob-omb play is "Launchpad [=McQuack=]", who was the pilot character in Disney's ''WesternAnimation/DuckTales''.
* Reference points for the titles included ''[[Film/TwoThousandOneASpaceOdyssey 2001: A Space Odyssey]]'', ''Film/FasterPussycatKillKill'' and ''[[Series/SesameStreet Sesame Street]]''.
* In the scene after Sex Bob-omb's first song, Young Neil is reading the web-comic ''[[{{Webcomic/Achewood}} Achewood]]''.
* Amongst Wallace's games console collection are a [[NintendoEntertainmentSystem NES]], [[SuperNintendoEntertainmentSystem SNES]], Nintendo Zapper and many classic games - all in working order.
* Stacey Pilgrim's rating is "T" for Teen, which comes from the ESRB ratings board for videogames.
* Scott Pilgrim is wearing an original ''[[{{Franchise/X-Men}} X-Men]]'' logo patch on his parka.
* In the arcade, Scott wears a Sharpie T-shirt. Sharpie is a brand of marker pen. The T-shirt was made specially for the film.
* During the second Sex Bob-omb rehearsal scene, Young Neil can be heard playing ''[[VideoGame/SuperMarioBros3 Super Mario Bros. 3]]''.
* Young Neil's T-shirt in the above scene is for ''Movement'', ''[[Music/NewOrder New Order]]'''s debut album.
* One of the partygoers in the party where Scott meets Ramona is wearing a T-shirt from the band ''[[{{Music/Calexico}} Calexico]]''.
* After the "drunk Wallace" scene, Wallace wakes to the Windows '95 shutdown sound.
* Later in the same scene, we hear the Windows '98 error sound when Knives Chau appears.
* In the second arcade scene, Scott wears a Match Pik T-shirt. They are a well-known brand of plectrums.
* In the scene where Stephen Stills is telling everyone about the TIBB, Young Neil's T-shirt features the logo for the NintendoSixtyFour.
* As Scott leaves the above scene, music from ''A Link to the Past'' leads into a Nigel Godrich orchestrated rendition. Gaz Coombes and Danny Goffey from ''Supergrass'' sing the harmonies. This cover version required personal clearance from ''Zelda'' creator Shigeru Miyamoto.
* Star doors were originally seen in ''VideoGame/SuperMario64''.
* In Ramona's apartment, Scott wears a CBC 'exploding' logo T-shirt. CBC = Canadian Broadcasting Corporation.
* Ramona's number has a real 212 area code for New York - this exact number has been seen before in ''{{Film/Munich}}'' and ''Film/DefinitelyMaybe''.
* In the Rockit, Scott wears a T-shirt for the band ''Plumtree'''s second album ''Mass Teen Fainting''.
* 'Crash' wears a ''Music/TheKinks'' T-shirt (''Word of Mouth'' album). His band is named after the ''[[VideoGame/KunioKun Crash 'n the Boys: Street Challenge]]'' [[NintendoEntertainmentSystem NES]] game.
* The 'DRUM' skin on ''Crash and the Boys'''s drum kit is a tribute to ''Franchise/TheMonkees'' film ''{{Film/Head}}''.
* Interior monologues (such as Scott's when he notices Knives about to tell Ramona how he and Knives met) are a staple of Japanese cartoons to minimise the precise lip-synching of the characters' mouths.
* The sound of Ramona and Patel's kiss in the flashback is accompanied by the boot up sound of a Mac.
* Patel's demise is inspired by legendary comic book artist Jack Kirby and his famous 'Kirby Crackle' signature style of dot filled explosions.
* After the bus ride, the next scene at the apartment opens with the ''{{Series/Seinfeld}}'' theme. The scene also feels very ''{{Series/Seinfeld}}''-esque in general.
* In the above scene, Scott wears a ''Webcomic/DieselSweeties'' Pixel Skull T-shirt.
* Fake Lucas Lee posters include "Let's Hope There's a Heaven", "You Just Don't Exist", "The Game Is Over 2", "Thrilled to Be Here" and "Action Doctor". All except the final one are named after ''Plumtree'' songs.
* In the record store after Lucas Lee's movie clip, notice the hanging display for [[{{Music/Radiohead}} Thom Yorke]]'s solo album ''The Eraser'' which was produced by ''[[Film/ScottPilgrimVsTheWorld Scott Pilgrim]]'''s composer Nigel Godrich.
* When Scott says he learned the bass from ''VideoGame/FinalFantasyII'', Michael Cera is actually playing "Final Fantasy II Battle I" by Nobuo Uematsu live on the bass.
* When Scott and Ramona are making out after the "45 MINUTES LATER" text, note that their embrace matches the famous image of ''Kiss'' by Tanya Chalkin behind them.
* The castle where Lucas Lee is shooting his movie is Casa Loma in Toronto, which has been featured in many films including ''Film/XMen1'', ''Main/StrangeBrew'', ''{{Film/Chicago}}'', ''Film/TheTuxedo'', ''Film/ThePacifier'' and ''Main/TheLoveGuru''.
* The term 'competish' is trade publication slang from ''Variety'' Magazine.
* Nigel Godrich's awesome cue "Rumble" when Lucas Lee's stunt team shows up pays respect to Barry De Vorzon's awesome score for ''Film/TheWarriors''.
* There are seven stunt doubles for Lucas Lee. This is a nod to the amount of doubles that Keanu Reeves had on ''Film/TheMatrix'' films.
* The exchange of 'Big fan' and 'Why wouldn't you be?' was taken from a real life backstage encounter between Edgar Wright and ''The Hives'' singer Pelle Almqvist.
* Ramona's 24 Unstoppable T-shirt during their conversation about Scott and Envy's break-up is in reference to Los Angeles Lakers player Kobe Bryant.
* The UmaThurman movie Jimmy refers to is ''Main/MySuperExGirlfriend''.
* Scott's T-shirt in the scene where Stephen Stills mentions "distressing news" is a ''Tetsuwan Atom'' era ''Manga/AstroBoy''.
* At the ''The Clash at Demonhead'' secret show, Scott wears a ''Music/TheSmashingPumpkins'' "Zero" T-shirt.
* Todd Ingram wears a ''ComicBook/ThePunisher'' T-shirt with special skull design by Bryan Lee O'Malley during his performance.
* A ''Franchise/SonicTheHedgehog'' ring pickup effect soundtracks the "He Really Doesn't" caption.
* The track "The Vegan" that plays when Todd first activates his powers is a tribute to John Carpenter.
* Both breaking hearts in the Todd Ingram flashback have the sound effect of the Mac trash noise.
* We hear a ''VideoGame/SonicTheHedgehog2'' sound effect when the gauge hits 'Gets It'. It is the sound from the end-of-level points tally in the video game.
* Another ''Franchise/SonicTheHedgehog'' video game sound effect utilised for the hammer. This time it's the sound when Sonic enters a Special Stage.
* When Roxy smashes the disco ball, the glass shards and their reflections slightly resemble the character selection screen of a typical fighting game, with Roxy and Ramona being the giant character portraits and Scott being a mere icon.