Jimmy Woo first appeared in "Ant-Man and the Wasp" as an FBI Agent assigned to surveil Scott Lang during house arrest, and he showed up again in "WandaVision” as an agent of SWORD. Park reprises the role, albeit briefly, having lunch with Lang, and the two seem pretty chummy these days.

Scott Lang is doing his best to be a good father, but his daughter Cassie is arrested for protesting the removal of a homeless encampment early in the film. This is a direct reference to our introduction to Scott in the first "Ant-Man" film, where he's picked up from prison by his buddy Luis.

In the first "Ant-Man," Hank Pym's former colleague Darren Cross is seemingly killed by Lang. However, "Ant-Man and the Wasp: Quantumania" reveals that Darren didn't die but was sent to the Quantum Realm and became the Mechanized Organism Designed Only for Killing, or MODOK.

Not only does Cassie have a size-changing suit in the film, but in one standout moment, she becomes massive — just like her father. This is a reference to the comics, where Cassie becomes a superhero known as Stature who can alter her size at will.

As Kang explains his plan to conquer the timelines to Janet, he pulls up a digital map of the multiverse and its countless timelines. This map is nearly identical to the one displayed numerous times in the Disney+ series "Loki," which deals heavily with the multiverse.