Scott Pilgrim vs. the World/Shout Out
- Music in the opening scene is from Zelda: A Link to the Past. In the following scene Young Neil is playing the game on his Nintendo DS Lite.
- Scott Pilgrim wears a The Smashing Pumpkins T-shirt during the first scene. Initials are both SP.
- Sound effects after Scott first mentions Knives's name are from Zelda: A Link to the Past on Young Neil's Nintendo DS 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 DuckTales (1987).
- Reference points for the titles included 2001: A Space Odyssey, Faster, Pussycat! Kill! Kill! and Sesame Street.
- In the scene after Sex Bob-omb's first song, Young Neil is reading the web-comic Achewood.
- Amongst Wallace's games console collection are a NES, 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 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 Super Mario Bros. 3.
- Young Neil's T-shirt in the above scene is for Movement, New Order's debut album.
- One of the partygoers in the party where Scott meets Ramona is wearing a T-shirt from the band 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 Nintendo 64.
- As Scott leaves the above scene, music from Zelda: 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 Super Mario 64.
- 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 Munich and Definitely Maybe.
- In the Rockit, Scott wears a T-shirt for the band Plumtree's first album Mass Teen Fainting.
- 'Crash' wears a The Kinks T-shirt (Word of Mouth album). His band is named after the Crash 'n the Boys: Street Challenge NES game.
- The 'DRUM' skin on Crash and the Boys's drum kit is a tribute to The Monkees 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 Seinfeld theme. The scene also feels very Seinfeld-esque in general.
- In the above scene, Scott wears a Diesel Sweeties 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 Thom Yorke's solo album The Eraser which was produced by Scott Pilgrim's composer Nigel Godrich.
- When Scott says he learned the bass from Final Fantasy II, 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 X-Men 1, Strange Brew, Chicago, The Tuxedo, The Pacifier and The Love Guru.
- 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 The Warriors.
- There are seven stunt doubles for Lucas Lee. This is a nod to the amount of doubles that Keanu Reeves had on The Matrix 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 Uma Thurman movie Jimmy refers to is My Super Ex-Girlfriend.
- Scott's T-shirt in the scene where Stephen Stills mentions "distressing news" is a Tetsuwan Atom era Astro Boy.
- At the The Clash at Demonhead secret show, Scott wears a The Smashing Pumpkins "Zero" T-shirt.
- Todd Ingram wears a The Punisher T-shirt with special skull design by Bryan Lee O'Malley during his performance.
- A Sonic the Hedgehog 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 Sonic the Hedgehog 2 sound effect when the gauge hits 'Gets It'. It is the sound from the end-of-level points tally in the video game.
- Another Sonic the Hedgehog video game sound effect utilised for the hammer. This time it's the sound when Sonic enters a Special Stage.
- When Roxy breaks the disco ball, the shards of glass line up in the style of