Trivia: All of the Hulks movements, from running to fighting, were done by the director, Ang Lee, wearing a motion capture suit.
Trivia: Stan Lee says that the Hulk was inspired by Frankenstein's monster and Dr. Jekyll/Mr. Hyde.
Trivia: When Stan Lee first created the Hulk, he wanted the Hulks' skin to be gray just like classic monster movies. When making the first comic of the Hulk, the gray for the Hulk was either too dark or too bright. Stan Lee then decided to use green for the Hulk's skin color since green was not being used for other Marvel superheroes.
Trivia: The powers that David Banner gains match those of The Absorbing Man, a character from Hulk's Rogues Gallery in the comic (though in the comic, he was a convict named Carl "Crusher" Creel).
Trivia: When David Banner is first recognizing his powers in the lab, and is watching his hand become various different textures, the very first skin texture shown resembles that of 'The Thing' from Stan Lee's 'The Fantastic Four.'
Trivia: For the 70's TV show, the main character was named David Banner, as Bruce was thought to be too feminine for a leading male's name, but in this movie version, Bruce's father is called David Banner.
Trivia: Originally, the 2008 Marvel Cinematic Universe film "The Incredible Hulk" was written as a direct sequel to this film, but it was ultimately retooled to be a stand-alone reboot. This explains some interesting connections the two films share, not the least of which being that this film ends with Bruce in hiding in South America, while "The Incredible Hulk" opens with Bruce hiding out in Brazil and being discovered. And interestingly enough, if you ignore the prologue sequence and Iron Man cameo at the end of "The Incredible Hulk", they still actually fit together quite well.