The theme song from the Iron Man (1966) cartoon series is played in several shots. In the casino scene, in Stark's bedroom scene, and finally it is the personalized ring tone for Stark on James Rhodes cell phone.

When Pepper Potts is stealing Obediah's files off of Tony Starks computer in his office, pay close attention to some of the names of the files. On several files that show on the computer screen, a few are labeled "Lebowski". A playful homage to Jeff Bridges (who plays Obediah) and his famous slacker character from the movie of the same name. Submitted by CCARNI

The lead terrorist gives a speech about Genghis Khan's use of the bow and arrow. Iron Man's archenemy in the comics, The Mandarin, claims to be a direct descendent of Genghis Khan.

In the movie, Jarvis is Tony's automated system. In the comics, Jarvis is the name of his butler, who later becomes the butler for the Avengers.

The reason Starke's friend Rhodes looks at the suit of armor at the end of the movie and says something like "Next Time!" is because in the comic books he ends up actually having his own suit of armor, donning the name War Machine. He backs Tony Stark up in many situations and is one of his most trusted friends.

Stan Lee makes his usual cameo as a man who Tony Stark mistakes as Hugh Hefner.

After Tony's press conference about stopping Stark Industries weapons manufacturing, Obidiah Stane uses the phrase "Iron Monger". This is the name given to his character in the comics, when he dons the suit seen at the end of the movie.

Director Jon Favreau appears as one of Tony's personal assistants. Submitted by Cubs Fan

The name of the terrorist group that abducts Tony, "The Ten Rings," is a reference to an infamous Iron Man villain, "The Mandarin," who possessed 10 magical rings.

Stay until after the credits where there is a scene with Samuel Jackson playing a certain eye-patched head of SHIELD.