Continuity Nod / The Peanuts Movie

• Various memorable quotes from both the comic strip and previous specials are used throughout the movie.
• The Kite-Eating Tree is briefly mentioned, though its appearance is leafless (on account of winter) and without its trademark grin.
• Vince Guaraldi's "Skating" appears, set to, appropriately enough, skating.
• The opening sequence when Snoopy grabs Linus's blanket and the chain of ice skaters goes flying off in all directions is highly reminiscent of A Charlie Brown Christmas.
• Lucy pulling away a football, causing Charlie Brown to slip into the air and fall flat on his back.
• Baseball, Charlie Brown pitching, and having his clothes knocked off.
• During an Imagine Spot montage of the WWI Flying Ace behind enemy lines, Snoopy briefly looks like his brother Spike while crossing a desert (since Spike lives in one). During another spot, Snoopy puffs himself out, which makes him look like his other brother Olaf. The real Spike and Olaf, and their other siblings Belle and Marbles and Andy cameo in a post-credits scene.
• Snoopy does his trademark vulture stare, and then his flying "whirli-dog", while snatching cupcakes.
• Snoopy sitting on his doghouse contemplating a novel and starting with "It Was a Dark and Stormy Night".
• Psychiatric Help, regardless of inflation, still remains 5¢.
• The moment when Charlie Brown picks up the Little Red-Haired Girl's pencil and notices it has teeth marks is derived from 2002's A Charlie Brown Valentine, with Charlie Brown successfully hanging on to it in the movie, as compared to A Charlie Brown Valentine, where Lucy snatches the pencil away and ruins his chances to talk to the Little Red-Haired Girl.
• Joe Cool crashes the school dance.
• Woodstock driving a tiny Zamboni, and then pushing a tiny snowblower, each appeared a number of times in the strip.
• One of the many things tossed out of Snoopy's doghouse is Vincent van Gogh's The Starry Night, a reference to the oft-mentioned but never-shown Van Gogh painting that Snoopy owns.
• Peppermint Patty calls Joe Cool a "funny-looking kid with a big nose", in reference to what she called Snoopy during her first years in the strip.
• Charlie Brown writing a book report about War and Peace was previously used in the special Happy New Year, Charlie Brown; in the TV special, he managed to get a D-minus for writing his book report at the last minute, while he puts more effort into writing an extensive report in the movie, only for it to get blown to pieces by a miniature Red Baron biplane model.
• Snoopy licks Lucy, and she gives the exact same overreaction that she had in A Charlie Brown Christmas.
  Lucy: Ugh! I've been kissed by a dog! I have dog germs! Get hot water! Get some disinfectant! Get some iodine!
• Marcie appears serving root beer to Snoopy and his siblings during one of his WWI Flying Ace fantasies. In the strip, Snoopy would often go to Marcie's house while in the Flying Ace persona, believing it to be a French café, where Marcie would willingly play the part of a French Waitress serving him root beer.
• A subtle one, but Charlie Brown meeting the little red-haired girl at the bus at the end brings back the ending of You're in Love, Charlie Brown, a seldom-aired special from 1967.
• When the kids watch The Little Red-Haired Girl moving in, Linus hopes she'll have an open mind about the Great Pumpkin.
• Snoopy getting hit with "No Dogs Allowed!" when trying to enter the school.