Trivia: Some of the members of Captain America's wartime elite squad are taken from Marvel Comics WWII based "Sgt Nick Fury and the Howling Commandos" - such as Dum Dum Duggan and Gabe Jones.
Trivia: Before Steve Rogers exits the chamber that changes him into Captain America, the sound effect for the machine winding down is the same one as for the rocket pack shutting down in The Rocketeer, another Joe Johnston movie.
Trivia: When Steve Rogers is performing at a USO show, he play punches a guy portraying Adolf Hitler in the face. The cover for the very first Captain America comic had Captain America actually punching Hitler in the face.
Trivia: At the World Expo there is a display with a mannequin in a red suit inside a glass tube, a reference to the original Human Torch Jim Hammond who fought along side Captain America in the comics.
Trivia: Stan Lee cameo: When Captain America did not come out for one of his shows, a short man came out to tell the announcer he would not be appearing. Stan Lee says "I thought he would be taller."
Trivia: When Captain America is approaching Red Skull's lair in the Alps, one of the German sentries lets out a Wilhelm scream when he gets knocked off his motorcycle. (01:32:30)
Trivia: When we first see the German scientist Arnim Zola, we only see his face appearing distorted through a yellowish lens. This is a nod to his comic book counterpart - in the comics, Zola exists within a robotic body, with his face appearing on a monitor on the robot's chest. (00:17:35)
Trivia: Laura Haddock plays a dancer that asks Steve for an autograph. She later played the mother of Star Lord in Guardians of the Galaxy.
Trivia: Bucky takes the shield of Cap for a brief moment as reference to the comics where he has taken the mantle of Captain America.
Trivia: When Arnim Zola is gathering his papers,after Captain America goes on the rescue mission in the factory,we see a blueprint for Zola's robotic body.A nod to the comics and possibly foreshadowing the events of Captain America:The Winter Soldier.
Answer: It's a drinking song from 1883 called "There's a Tavern in the Town."
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