GILMORE GIRLS (2000–2007)
Alexis Bledel hates coffee, but Rory, her character, loves it. Whenever you see her drinking "coffee" in the series, she is actually drinking Coca-Cola out of her cup.
Scott Patterson, who plays Luke, was not originally hired to be a series regular. He was only signed on for the pilot episode, but it was only after the discovery of the undeniable chemistry between him and Lauren Graham that he was contracted for more episodes, and quickly became a series regular.
Milo Ventimiglia and Alexis Bledel (Jess and Rory) actually dated in real life for three and a half years.
Liza Weil originally tested for the role of Rory and did not get the part, but the producers liked her so much that they wrote her the role of Paris Geller.
The exterior shot of "The Dragonfly Inn" is actually the home of TV's The Waltons (1971).
Keiko Agena (Lane Kim) was 26 playing a 15 year old in Season 1.
Luke's character was originally written to be played by a woman, but the producers figured that "there wasn't enough testosterone" in the series and that resulted in Scott Patterson turning the character around.
Rory occasionally speaks Spanish with Ezsperanza, where she's shown to be moderately-fluent, using basic conversational phrases. Ironically, Alexis Bledel is Hispanic (of Argentinian descent) and speaks Spanish fluently, having grown up in a Spanish-speaking household. Bledel has stated that her second language was English and she did not learn it until she attended school.
When the character Brad Langford (Adam Wylie) returns to Chilton Academy after an absence of several months, he explains that he was away playing Jack in "Into the Woods" on Broadway. Wylie really was away from the series to play Jack in the 2002 Broadway revival of "Into the Woods".
The town of Stars Hollow is based on Washington Depot, Connecticut. Creator Amy Sherman-Palladino stayed there while on a trip with her husband to look at Mark Twain's wallpaper.
Due to the fast pace speech in the show, the average script for an episode of the show runs 75-80 pages, as opposed to 45-50 for a standard hour-long television show. During the 101st episode, a black and white movie from the 1930s is being shown. Lorelai looks at the movie and says they "talked fast" in those movies.
Lane's band's name is "Hep Alien". The writers named it after producer Helen Pai; "Hep Alien" is an anagram of her name.
Carole King (who sings the theme song) guest stars in season 3 as the music "rock" store owner who lets Lane use her store drum set for practice.
The character of Jess (played by Milo Ventimiglia) was supposed to have a spin-off called "Windward Circle" which was picked up by the WB for midseason 2004, in which the character moves in with his estranged father (played by Rob Estes) and his father's girlfriend (played by Sherilyn Fenn) from Connecticut to California. But due to the high cost of filming on location in Venice, California, the WB changed their minds and decided not to go forward with it.
Lorelai and Christopher are driving to Friday night dinner at the Gilmores. During the drive they are listening to Skid Row's "18 and Life". The lead singer of Skid Row is Sebastian Bach who is Gil the guitarist of Lane's band Hep Alien.
During a June 2015 cast reunion on "The Today Show," Alexis Bledel was asked if she thought Rory would now be with Dean, Jess, or Logan, and her answer was "none of the above": "I think she'd be seeing someone new, or she'd be single and focused on her career. I don't think she'd be married." Lauren Graham then interjected, "that's the best answer ever!"
The dollhouse seen in Lorelai's bedroom is the same dollhouse seen on Friends when Monica inherits a dollhouse after her Aunt Sylvia dies - "The One with the Dollhouse." Both Friends and Gilmore Girls filmed on the Warner Brother's lot.