Warning: This article contains spoilers for Ant-Man!

Marvel’s Ant-Man has arrived! And in addition to all those creepy-crawlies he travels with, the tiniest Avenger has also brought a bunch of sweet Easter Eggs with him.

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#1: Shield Flashback

John Slattery as Howard Stark in Iron Man 2

#2: Mitchell Carson

Martin Donovan plays Mitchell Carson.

#3: The Milgrom Hotel

Marvel artist Al Milgrom (right)

#4: Tales to Astonish

#5: Avengers Who?

Cities be floating and whatnot in Age of Ultron.

Here’s our list of the 11 coolest Easter Eggs, references and trivia that we’ve uncovered in Ant-Man!The film opens with a flashback to the late 1980s, where Michael Douglas’ Hank Pym has a falling out with several senior members of Shield. That includes Hayley Atwell and John Slattery -- both in age make-up -- as older versions of Peggy Carter and Howard Stark. Good to see they were still fighting the good fight back in the age of Duran Duran! Oh, and by the way, this scene takes place at the Triskelion -- the Shield headquarters destroyed in Winter Soldier. Only here, it’s brand new and still being constructed.There’s a third figure in that meeting between Pym and Shield: Martin Donovan plays Mitchell Carson, a sketchy character who actually was a player in the Ant-Man comics. Specifically, Carson was an agent who was meant to take over the Ant-Man suit for Shield -- the suit that actually wound up in the hands of the third Ant-Man, Eric O'Grady. This comics version of Carson is pretty different from the movie version, though they share at least one trait: They’re both jerks.The Milgrom Hotel in Ant-Man is a call-out to classic Marvel artist Al Milgrom. He spent a 40-issue run drawing West Coast Avengers, which frequently featured Hank Pym in his non-Ant-Man form.Early in the film, Corey Stoll's villainous Darren Cross gives a speech about Pym’s rumored shrinking technology from back in the day. “Propaganda, tales to astonish,” he exclaims with a wink. Of course, Tales to Astonish was the comic where Hank Pym made his very first appearance. Astonishing.At one point, Paul Rudd’s Scott Lang suggests just calling in The Avengers to take care of things. But Hank Pym is apparently just as suspicious of Earth’s Mightiest Heroes as he is of Shield. He says the super-team is probably too busy “dropping cities from the sky,” which is of course a reference to the events of Age of Ultron. Hey Sokovia, hope everything’s O.K. over there these days!