Here's something you might not know: Justin Theroux has a very famous cousin.

I have some very important information that I would like to share.

On Friday, Jennifer Aniston and Justin Theroux announced their separation after two-and-a-half years of marriage.

Theroux is an American actor, film producer, director and comedian, who has appeared in films such as Tropic Thunder, The Girl on the Train, and Zoolander 2. 

The 46-year-old has also grown up alongside a very famous cousin, who works for the BBC.

That cousin is this guy.

Louis Theroux, one year older than his American cousin, is one of the world's most respected documentary filmmakers, best known for his series Louis Theroux's Weird Weekends, his film, My Scientology Movie, and his more recent specials on the BBC.

Theroux (the British one) was born in Singapore to an American novelist named Paul Theroux, and his English wife, Anne Castle. He holds dual British and American citizenship, hence why so much of his work has focused on the United States.

His older brother Marcel is a writer and presenter, and two of his uncles are prominent writers. And then there's his very famous and very cool cousin - Justin.

In 2014, the documentarian said about his cousin's partner, Jennifer Aniston,  "We’ve met a few times... Jen is a nice person. She’s a really nice person.

"I hope her and Justin do get married but I don’t have any dates or anything like that. It would be nice to be there if they did."

LISTEN: Clare Stephens interviews Louis Theroux on The Binge. Post continues below. 

It was also reported at the time that Aniston was a fan of Theroux's work, and joked that she'd like him to make a speech at their wedding.

In an interview with The Telegraph in 2016, Justin Theroux said, "I never felt bright... I was always conscious that Louis, who I love and adore, was riotously funny along with his father, Paul.

"I was sort of the red-headed stepchild. Louis and Marcel [Louis' brother] would sit around reading Chaucer at a young age and Louis tells this story of looking up at one point to see me eating a styrofoam cup."

The actor said that very much summed up their "different career trajectories".

Late last year, Theroux uploaded a picture on Twitter of himself and his cousin, Justin, arguing about how to pronounce their surname.

He wrote, "Being grilled by my cuzz over how to pronounce our last name. The-row? Theroo? #meaning?" along with a picture of them both.

Obviously it's Theroo - evidenced by this very lovely Christmas jumper.

This might help with the p pronunciation... pic.twitter.com/vtRl7BwOBn

— Steven Hall (@sxhall) November 26, 2017

Go forth - tell every living thing you see this weekend that Justin and Louis Theroux are cousins.

And Louis Theroux and Jennifer Aniston likely spent Christmas together - an image I thoroughly enjoy.