It's Lindsay Lohan, in one of her first leading film roles, who played 15-year old Anna Coleman in the 2003 movie, "Freaky Friday." Jamie Lee Curtis starred as her mom, Tess Coleman.

Part of Anna's frustration with her mom is that she is always being blamed for starting trouble with her brother Harry -- who she refers to as a troll -- when it's often Harry who's antagonizing Anna.

Tess can't understand why Anna is so negative towards former friend Stacey Hinkhouse. Turns out, Stacey holds a grudge against Anna and does anything she can to cause her grief -- such as hitting her with a volleyball in gym class.

Anna totally has a crush on older boy Jake, played by Chad Michael Murray. He seems interested in Anna, but doesn't truly fall head over heels until Anna and Tess switch places -- leading to a really bizarre situation as Chad pursues what appears to be Tess.

Tess is a therapist who finds herself working hard to meet the needs of her patients -- even during her time off. As the film opens, Tess is even busier than normal because she is trying to juggle work while also planning her upcoming wedding.

Anna is a guitar master, jamming out on her dad's old Telecaster, which she received after he died a few years earlier.

Anna rocks out in a band called Pink Slip. While they mostly practice in Anna's garage, they are looking for their big break. Unfortunately, Tess is less than supportive of the whole band idea.

No matter how hard Anna tries, she always seems to end up with an "F" in Mr. Bates' class. She later learns that Tess turned him down when he asked her to prom back in high school, and he's taking revenge by lowering Anna's GPA.

Tess is engaged to be married to Ryan, who is almost ready to call off the wedding because he feels that Anna isn't ready to accept him as part of the family.

Anna and her band mates have scored an audition for Wango Tango, a huge music festival put on annually by a Los Angeles radio station. To attend the audition at House of Blues, Anna will have to skip out on the rehearsal dinner for her mom's wedding.

The Colemans and Ryan head for a Chinese restaurant called Pei-Pei on the night before the rehearsal dinner. Tensions between Anna and Tess are at their highest point -- which doesn't escape the notice of the restaurant staff.

Anna and Tess read their fortunes, which are really an ancient incantation. Soon they experience a mini earthquake that only the two of them can feel.

The mom and daughter duo spend 24 hours living one another's lives. They first switch places at midnight on the day of the visit to the Chinese restaurant, then switch back 24 hours later, after the rehearsal dinner. While they are willing to try anything to get back to normal, they learn that only selfless love can break the spell and switch them back.

Tess and Anna trade places at the stroke of midnight, when both are sleeping. Tess is the first to realize what happened, when she wakes up in Anna's bed instead of her own.

While she is stuck in Tess' body, Anna is forced to attend a parent-teacher conference at Harry's school. While she is there, Harry's teacher shows her an essay that Harry wrote about how much he admires his sister Anna -- which totally changes how she feels about her little brother.

Tess learns for herself why Stacey Hinkhouse is bad news. While Tess is stuck in Anna's body, Stacey claims that Anna cheated on a test, landing Anna/Tess in detention yet again.

After Tess -- in Anna's body -- is accused on cheating on a big test, Jake helps her sneak into the file room at school to finish the exam, which makes Tess think that maybe Jake isn't so bad after all. While she is in the file room, Tess/Anna erases all of the answers on Stacey's answer sheet to get revenge.

Ryan surprises Tess -- who is really Anna at the time -- by getting her an appearance on a talk show to discuss her latest book. Poor Anna is forced to appear on TV and discuss a subject she knows nothing about.

Anna resigns herself to missing the Wango Tango audition because it's at the same time as the rehearsal dinner. When her friends try to kidnap Anna -- who is really Tess -- soon-to-be-stepfather Ryan tells them to go ahead and go to the audition.

When Anna -- in Tess' body -- gives a toast at the rehearsal dinner, she finally makes Ryan feel like he's been accepted fully into the family. This act of selfless love breaks the spell, causes a minor earthquake once again, and sends mom and daughter back into their own bodies.

When the owner of the Chinese restaurant notices Granda and Harry fighting at the reception, she tries to give them fortune cookies to make them switch places like Anna and Tess did. Fortunately, her daughter notices and tackles the pair before they can read their fortunes.

While she was trapped in her mom's body, Anna got a piercing in the upper portion of Tess' ear. Tess decided to keep the new piercing after the two switched back.

It's a good thing Ryan let Anna and her friends skip the rehearsal dinner and go to their audition. They were such a hit that they scored a place at Wango Tango.

Anna is totally thrown when she is in Tess' body and is forced to appear on a talk show and discuss a book on senescence. She manages to make it through the segment once she figures out that senescence pretty much just refers to aging or growing older.

Everyone knows about the original 1976 movie version of "Freaky Friday," but did you know Disney also made a TV movie based on the book? The 1995 TV movie starred Gaby Hoffman and Shelley Long. That means the 2003 Lindsay Lohan version was actually Disney's third "Freaky Friday" movie.

It was a young Jodie Foster who played the daughter in the 1976 film, with Barbara Harris as the mom. Foster was asked to star as Tess in the 2003 remake, but she turned down the part.

All "Freaky Friday" films are based on a 1972 book by Mary Rodgers. In the book, Annabel Andrews switches places with her mother, who is largely absent from the book and only shows up at the beginning and the end.

To make the movie more authentic, both Lindsay Lohan and Jamie Lee Curtis learned to play guitar well enough to actually play the instrument in the film.

Kelly Osbourne was offered the part of Maddie -- lead singer of Pink Slip. She turned down the part, which ended up going to Christina Vidal.

Michelle Trachtenberg was offered the role of Anna, but had to turn it down because she was busy working on "Buffy the Vampire Slayer." That left the part open for Lindsay Lohan, who had her first major motion picture role in "Freaky Friday," since "The Parent Trap" in 1998.