1. Based connected Mary Rodgers' 1972 caller of the aforesaid name, the 2003 Freaky Friday is the 2nd remake of the aforesaid story. The archetypal movie adaptation was released successful 1976, portion a made-for-television instrumentality followed successful 1995.

2. The film's producer Andrew Gunn reached retired to Jodie Foster, who played Annabel successful the 1976 film, with the anticipation that she would beryllium funny successful taking connected the parent role. Foster passed connected the accidental arsenic she was acrophobic her casting would beryllium a distraction. 

3. Annette Bening was formed to play Tess Coleman, but dropped retired six days earlier filming was acceptable to begin.

4. After rising to fame arsenic the archetypal shriek queen, Halloween prima Jamie Lee Curtis thought her starring woman days were down her erstwhile she was approached by manager Mark Waters to regenerate Bening.

"I was telling interviewers I was 44, a small chubby, my hairsbreadth was grey, I was refusing to dye it, and I was contented with my life," Curtis told the Telegraph successful 2003. "In this business, I've ever known there's a constituent astatine which the champion happening to bash is mildly backmost retired of the door."

5. But aft speechmaking the publication and gathering with Waters, Curtis decided to instrumentality connected the matriarch role--dyeing her hairsbreadth and learning however to play guitar to bash so--that would revitalize her career. "Shows what tin hap erstwhile you fto spell and fto yourself consciousness liberated," Curtis explained. 

6. After her breakout relation successful The Parent Trap, Lindsay Lohan took a breather from Hollywood, explaining that she was "thrown off" by her overnight fame. 

"It came each astatine once, and Parent Trap was an astonishing movie," she told IGN successful 2003. "How bash you bash thing that tin apical that? I wanted to spell to schoolhouse and beryllium a mean kid. I went to precocious school, and I did 2 Disney Channel things which were fun, conscionable to support up."

But erstwhile she came crossed the publication for Freaky Friday, Lohan knew it was "perfect" for her.

7. Before Lohan could beryllium formed arsenic Anna, she had to champion 4 different actresses for the portion and she didn't initially impressment Waters, who said successful a 2005 occurrence of E!'s True Hollywood Story that her audition was "probably the worst of the five." However, "we besides agreed she was a star," Waters added. "She had this astonishing turbulence and vigor which we thought was going to beryllium truly absorbing for the character."

8. Kelly Osbourne was initially formed to play Lohan's champion friend, but the world prima decided not to bash the movie erstwhile her ma Sharon Osbourne was diagnosed with colon cancer. 

"I was faced with the prime of a vocation oregon spending what could person been the past days of my mother's beingness with her," Osbourne explained to Cosmopolitan successful 2013. "The prime was seemingly clear. I said, 'F--k you, career, hello, Mother.' I became my mum's caregiver 24/7."

9. Lohan had her archetypal on-screen buss successful the movie with Chad Michael Murray, who played Anna's emotion involvement Jake. "I wasn't excessively nervous," Lohan said successful a featurette, "after the 15th take!"

10. But Murray revealed during a 2019 quality connected Busy Tonight that helium besides made retired with Curtis off-screen to assistance "settle" Lohan's nerves anterior to their kissing scene. After Curtis brought Lohan and Murray into her trailer successful effort to interruption the crystal earlier cameras were rolling, Murray said Curtis "just grabbed maine by the backmost of the caput and made retired with me." His reaction? "Dude, I conscionable made retired with Jamie Lee Curtis! This is great!"

11. Tom Selleck was primitively formed to play Tess' fellow Ryan, but helium dropped retired of the task aft Bening exited. Mark Harmon took implicit the relation and helium and Curtis formed a adjacent friendship, with the histrion going connected to marque respective impermanent appearances connected Harmon's deed CBS procedural, NCIS.

12. Orgy set subordinate Amir Derakh taught Curtis and Lohan however to play guitar. Lohan went connected to grounds her archetypal song, "Ultimate," for the soundtrack.

13. Lohan's ma and then-manager, Dina Lohan, has a cameo in the last country arsenic 1 of the wedding guests.

14. Marc McClure, who played Annabel's emotion involvement successful the 1976 movie, makes a brief appearance arsenic Boris, the transportation man.

15. In an alternate ending, Harry (Ryan Malgarini) and Grandpa (Harold Gould) opened their body-swap-causing luck cookies just as an earthquake happens, mounting up a imaginable sequel.

16. Speculation astir a sequel ran rampant erstwhile Curtis told fans astatine a 2022 Halloween Ends property lawsuit successful Mexico City that she would "absolutely" reprise the relation of Tess. She besides offered an update connected her relationship with Lohan, admitting she would trial the Mean Girls histrion "to marque definite it's not a phishing scam" each clip she texts her. 

"'What was the opus that you and I were trying to larn the rap [that's] successful the mediate of the opus portion we were sitting successful the car doing the country portion we were eating French fries?'" Curtis recalled, referencing 1 of the movie's iconic scenes. "The reply is the Justin Timberlake opus 'Like I Love You.'" .... she and I were playing the tape, past we'd spell backmost and rewind, the 2 of america were penning the lyrics to that full rap successful the car."

17. Three months earlier the archetypal film's 20th anniversary, Curtis and Lohan are expected to assemblage swap for a 2nd time, with E! News confirming a follow-up movie is successful the works.