THEN AND NOW: The cast of 'Sisterhood of the Traveling Pants'

The four friends find pants that fit them all.Warner Bros. Pictures

• It's been 15 years since "The Sisterhood of the Traveling Pants" premiered in 2005.
• Alexis Bledel, Blake Lively, America Ferrera, and Amber Tamblyn star as four childhood best friends who discover a pair of jeans that fits them all, keeping them bonded through their different summer adventures.
• In 2018, the idea of a third movie began to float around, but we're still waiting for updates — in the meantime, here is a look at what the cast has been up to over the past 15 years.

"The Sisterhood of the Traveling Pants" is an iconic story of friendship.

It's been 15 years since the first movie had four best friends — played by Alexis Bledel, Blake Lively, America Ferrera, and Amber Tamblyn — find a pair of jeans that fit them all. On August 6, 2008, the foursome reunited for more adventures in the sequel, "The Sisterhood of the Traveling Pants 2."

In April 2018, it was reported that a third movie was in the works. Bledel even said on "The Tonight Show Starring Jimmy Fallon" that the girls had "pitched" a concept for another movie.

While there have been no recent updates on the possible third movie, the four main girls have all gone on to star in countless other projects.

Here's a look at what the casts of both movies have been up to.