The music underscoring the girls` march to the "isolation cabin" was originally used in The Great Escape (1963), scored by Elmer Bernstein.
The name Meredith Blake is a reference to a male character in "Five Little Pigs", a story written by Agatha Christie. An adaption of that story was produced for the TV series "Agatha Christie: Poirot" (1989).
# # To find the actress who would play Hallie and Annie, an exhaustive casting search was conducted in Boston, Chicago, Minneapolis, Atlanta, Miami, Vancouver, Toronto, and London, with open calls in New York and Los Angeles. Eventually 11-year-old Long Island native Lindsay Lohan was given the role.
In casting the dual role of twins Hallie and Annie, director Nancy Meyers kept saying, "I`m looking for a little Diane Keaton... Diane is so alive on screen and that`s what I wanted from the actress in these parts."
When this movie was shown on Disney Channel, the scenes where Hallie pierces Annie`s ears, when Annie (Hallie) takes a sip of the wine, and when Annie rides the plane to London are cut.
Camp Walden is based on an existing camp for Girls Denmark Maine. There is no Isolation Cabin.
The reaction of Nick Parker (Dennis Quaid`s character) reaction to seeing Elizabeth (Natasha Richardson`s character) for the first time in 11 years is identical to James Garner`s character`s reaction in Move Over, Darling (1963) upon seeing his missing wife after 5 years. In both films, the man is on an elevator with his current partner and leans over in disbelief as the door closes. James Garner`s character in Move Over, Darling (1963) is also named Nick. James Garner actually copied the move in the elevator from Cary Grant who did the same thing in the movie My Favorite Wife (1940). When Cary Grant entered the elevator with his new bride Gail Patrick he was shocked to see his first wife Irene Dunne who after seven years had been declared missing at sea and presumed dead that very morning. Move Over Darling is a remake of My Favorite Wife.
# # The name of the hotel, The Stafford, is a reference to the name of a boy in the original The Parent Trap (1961). He is the boy Hayley Mills` character, Susan, is talking to at the camp dance.
We learn that Camp Walden is in Maine from seeing the State Flag from Maine as it is going up in the morning and also when it comes down in the rain storm. Also in the scene where Hallie and friends are rigging Annie`s room, you see them using vegetable oil from Hannaford Bros, and Great Lost Bear chocolate sauce. Both are local Maine brands.
Annie makes a call to `Mildred Plotka`, a reference to the 1964 movie.
From the opening of the film we find out that the parents were married on 8 January 1986. Nicholas Parker was 24 and Elizabeth James was 23. Elizabeth`s occupation is listed as artist, while Nick`s is listed as Viticulturist.
The scene where Annie and Hallie are lying in bed and the camera pans from the moon, to the parents` picture, to the twins took six hours to get it right. Lindsay Lohan` had to change from Annie to Hallie, and back all the time.
The man who weds the parents at the beginning is played by Director of Photography, Dean Cundey.
# # Michelle Trachtenberg was considered for the role(s) of the twins. Coincidentally, the actress`s birthday falls on 11th October, the same day as Hallie and Annie`s in the film.
Writer and director Nancy Meyers handpicked Lindsay Lohan to play the dual role of the twins in the film, and phoned the Lohan household herself to inform the actress that she had landed the part.
When Hallie arrives in London and meets Martin at the airport, at the point where the two begin their greeting, you can see Lindsay Lohan`s mother holding her brother Dakota Lohan, and beside her is Lindsay`s other brother Michael Lohan and sister Ali Lohan.
The lost boy who shows up at the girls camp is played by Michael Lohan, Lindsay Lohan`s real-life brother. Lindsay`s siblings regularly appear as extras in her movies.
# # After Hallie arrives in London, her mother takes her to a photo shoot. Above this, we hear a cover version of "Here Comes The Sun" by The Beatles, one of the songs on their album "Abbey Road". As we watch Hallie and her mother on her way, they cross the same street the same way as The Beatles did for the cover photo of the album "Abbey Road". Even the cars on the side are the same.
# # Marva Kulp Sr. and Jr., the camp counselors, are named in tribute to Nancy Kulp, who played the younger of the camp counselors in the original The Parent Trap (1961).
Actress Joanna Barnes played the "wicked girlfriend" in The Parent Trap (1961) and plays the mother of the wicked girlfriend in this version. Both characters are named Vicky.
The twins in this version are named after the daughters of director Nancy Meyers` and producer Charles Shyer, Annie Meyers-Shyer and Hallie Meyers-Shyer, both of whom have small parts in the movie. Hallie plays a girl at camp at the beginning who asks where the Navajo bunk is, and Annie plays the towel girl at the hotel who brings Elizabeth the first aid kit. The character whom Hallie Meyers-Shyer plays, conversely, is named Lindsay, after Lindsay Lohan, the actress who plays Hallie and Annie.
Lindsay Lohan`s first movie.
Lindsay Lohan can be heard singing "Let`s Get Together" as she walks into the elevator at the Stafford Hotel. This song is from the 1961 original. Similarly, the first few notes of "Let`s Get Together" are played as the closing notes of music at the tail of the end credits.
Meredith is heard talking on the cell phone to a "Reverend Mosby," a reference to a character in the original The Parent Trap (1961).
Lindsay Lohan had her ears pierced especially for her roles in this movie. (uk.imdb.com)