The list of words that Monica Swifton says to David to make him capable of love was the original list, written by Stanley Kubrick

One of the buildings in Manhattan is actually an Apple Macintosh (Harman-Kardon) subwoofer.

The movie was originally to be titled "A.I.", but after a survey it was revealed that too many people thought it was A1, a name of a popular steak sauce. The title was changed to "A.I. Artificial Intelligence" instead.

In Philip K. Dick's short story "Type II" which became the movie Screamers, the Type III robot was a small boy named David, carrying a Teddy.

When Joe combines questions during the Mr. Know scene, we hear the doorbell sound from The Jetsons.

Haley Joel Osment suggested to Steven Spielberg that his character (David) should not blink. Spielberg agreed and went further to suggest that none of the androids should blink.

Although Jack Angel recorded all of his voice work for Teddy while separate from the rest of the production, he was allowed on the set every day so that if any other characters' lines were changed during production, he could re-record Teddy's corresponding lines immediately.

The glowing crescent moon at the head of Martin's bed looks almost exactly like the moon of the logo of Dreamworks, Spielberg's movie studio which produced the film.

In order to keep the film's PG-13 rating, a building resembling a penis was digitally removed from the "Rouge City" set.

Spielberg used the water-filled set from The Perfect Storm for the flooded world of the future in this movie.

The hotel that Joe Gigolo walks into, when we are first introduced to the character, has the Hebrew words "Ahava Kshera" in neon. (Kosher Love)