In the pilot, Larry David: Curb Your Enthusiasm (1999) (TV), it was stated that Larry and Cheryl had children though they were never shown. In the series, they do not have children.
In the first season, they filmed in an empty house for the Davids' home. When someone actually moved into the house, the production (and the fictional Davids) were forced into finding a different house.
Whenever Larry inevitably finds himself lying to wife Cheryl about his latest convoluted mishap, actress Cheryl Hines is as genuinely in the dark as her character. That's because she is not privy to the full script outline, only being exposed to her own scenes.
At the start of the first season, Jeff Garlin (Jeff Greene) was still recovering from the effects of a stroke. The actor contends that the demands of filming a weekly TV series was instrumental in his full recovery.
There is no script to each episode, just a heavily detailed plot outline, which the actors all improvise. On average, each scene will require between 7 or 8 takes which is very high for a TV series on a tight schedule.
The theme music, "Frolic" by Luciano Michelini, was originally used on a bank commercial which stuck in Larry David's head.
Numerous actresses auditioned for the part of Larry's wife. Larry David said that he picked Cheryl Hines because she knew how to handle him.
Most of the main characters have the same first names as the actors who play them: Jeff Garlin as Jeff Greene, Cheryl Hines as Cheryl David, and Susie Essman as Susie Greene.
In "Curb Your Enthusiasm" (2000) {Shaq (#2.8)} featuring 'Shaquille ONeal, Larry brings him the entire Seinfeld series on tape. O'Neal says that "Seinfeld" (1990) {The Contest (#4.11)}, is his favorite episode. Larry David wrote this episode, and the show won three Emmy Awards for it.
In 2003 a man named Juan Catalan was arrested for a murder in Los Angeles. He repeatedly professed his innocence and asked to take a lie detector test, a request that the police denied. He also had an alibi: he swore that at the time of the murder he was at Dodger Stadium with his little girl, watching the Dodgers vs. the Braves, but his lawyer was unable to find him in any of the Dodger Vision or FOX footage he subpoenaed. However, he discovered that there was another source of crowd footage in the episode "Curb Your Enthusiasm" (2000) {The Car Pool Lane (#4.6)}, which had filmed at Dodger Stadium that night. Although Catalan did not make the final cut of the show, his lawyer was able to find him and his daughter in the outtakes, and determined from the timestamps on the tapes that Catalan could not have been the killer. When told that his show had released a wrongfully accused man from prison and a trial that could have led to the death penalty, Larry David commented, "I tell people that I've now done one decent thing in my life, albeit inadvertently."
Larry David and Richard Lewis, who has a recurring role as himself, went to summer camp together at the age of 13, lost contact and reconnected on the New York comedy club circuit nearly 15 years later.
Despite his on screen reputation as a misanthrope, the real Larry David will not joke about an actor's appearance unless he gets permission from them. For example, Jeff Garland has given him permission to call the character Jeff Green "fat" and in "The Pants Tent" Larry was concerned that when his character accused a woman of having breast implants that people would assume that the actress had breast implants.
Larry and Cheryl mention having several kids in this episode, even though they are never seen. In the series they never mention having children and, obviously, they're never seen.
During the first few episodes of the first season, Jeff and Suzie's child. Sammy is referred to as a he, whereas in later seasons she is a girl.
After the confrontation with the Anti-Wagnerite, Larry David whistles part of the tune to "Springtime for Hitler," the song from "The Producers." In Season 4, Larry David is chosen by Mel Brooks to play Max Bialystock in that very same show.
Bob Cobb, the inventor of the Cobb Salad is also the name of the character "the Maestro" from Seinfeld.
Larry does his impression of Cary Grant when he says the doll's name "Judy, Judy, Judy!". While Grant never actually says that in a movie, Stanley Donen, who directed him in Charade, has stated that for the fun of it, he had Grant filmed saying it. Donen admitted that since then he had lost that footage.
Krazee-Eyez Killa's rap lyrics that terrify Larry were written by the actor playing Krazee-Eyez on the day that scene was shot. Larry David said that he had not heard the lyrics before shooting that scene, and his initial reactions were the ones used in the episode.
Larry drives over Cheryl's foot when he gets out of the car wash.
Footage from this episode was used to exonerate a gang member accused of murder when it was revealed that he was at the Dodgers game shown here at the time of the murder.
It was Jorge Garcia's performance in this episode that got him the role of Hugo "Hurley" Reyes on Lost.
Anne Bancroft's final acting appearance (playing herself)
In this season, Larry plays Max Bialystock in The Producers on Broadway and is visited by his cousin Andy when in New York. Richard Kind who plays Cousin Andy actually played Max Bialystock on Broadway in 2005.
Larry's extreme anger at being unable to open the packaging is a well documented feeling, known as wrap rage. Supposedly thousands of people every year are injured because of it.
As Larry strikes the marble worktop with the cooking knife during the wrap rage scene real sparks are visible.
Julia Louis-Dreyfus is depicted within as having two daughters. In real life, she has two sons.