#1. Penelope Cruz and Salma Hayek.
Â© Kevin Winter / gettyimages
These two beauties became friends when shooting for Bandidas. Penelope says that before they had kids, they spent most of their free time together.
#2. Brad Pitt and George Clooney.
Â© Jeff Kravitz / gettyimages
How could they not have become friends after Ocean’s Eleven? Brad Pitt says about George, “He’s a lot of fun, he keeps everyone together.”
#3. Courteney Cox and Jennifer Aniston.
Â© Lester Cohen / gettyimages
Ok, this might not be the world’s best kept secret but this adorable duo are BFFs both on-screen and off. Jennifer describes her best friend as a truly caring and loyal person, saying “I’ve slept in her guest bedroom a lot! Without giving away too much of my private stuff, all I can say is she’s been there for me through thick and thin.”
#4. Kim Kardashian and Serena Williams.
No one knew about this until Kim posted a picture of the pair sipping on pre-quarterfinals tea. Apparently, the pair have been friends since 2006.
#5. Matt Damon and Ben Affleck.
Â© Angela Weiss / gettyimages
Matt and Ben have known each other since they were teenagers. The hunks live in the same neighborhood and their families hang out frequently. Was it the Good Will Hunting effect?
#6. Mila Kunis, Ashton Kutcher, and Princess Beatrice.
One day, two Hollywood actors, a princess, and her boyfriend get into an Uber. Their driver, excited by the “crazy convo,” asks for a selfie. The rest was history.
#7. Drew Barrymore and Cameron Diaz.
Â© Ryan Miller / gettyimages
These angels went beyond Charlie and have been best friends ever since. Drew even revealed her pet name for Cameron: Poo Poo! And if you needed anymore proof, Drew was a bridesmaid at Cameron’s wedding.
#8. Bradley Cooper and Gerard Butler.
Â© Karwai Tang / gettyimages
These guys love going to tennis matches together and dress in matching suits. Gerard says they’d like to play enemies in a movie because that way they could beat the living crap out of each other. Bromance at its best.
#9. Naomi Watts and Nicole Kidman.
Â© Jeff Vespa / gettyimages
Naomi and Nicole met during auditions in Australia. The friends have helped each other through everything — be it moving countries to dealing with the pain of a divorce.
#10. Tobey Maguire and Leonardo Di Caprio.
Â© Noel Vasquez / gettyimages
Di Caprio and Maguire are childhood friends of over 25 years and they were overjoyed to finally work together in The Great Gatsby. They love basketball and frequently go to games together.
#11. Britney Spears and Kate Hudson.
Last month, the pair owned Kate’s game night and destroyed everyone in Monopoly, Scrabble, and Cards Against Humanity. No one was safe from these blonde bombshells.
#12. Madonna and Gwyneth Paltrow.
Â© E. Charbonneau / gettyimages
Madonna and Gwyneth are so close that they call each other sisters. Their friendship has lasted a decade and Gwyneth even went as far as moving to New York to support her friend Madonna when she divorced Guy Ritchie.
#13. Maisie Williams, Hannah Murray, Jenna Coleman, and Daniel Radcliffe.
The Game of Thrones star Arya Stark (Maisie Williams) posted this awesome pic of her and fellow British San Diego Comic-Con party goers. They were: Game of Thrones/Skins star Hannah Murray, Doctor Who star Jenna Coleman, and Mr. Harry Potter himself — AKA Daniel Radcliffe. “I think this photo is gonna make the world implode…;..” she wrote. Yes. Yes it did.