You may have heard the name Beanie Feldstein floating around this awards season. The 24-year-old actress is not only one of the breakout stars of Greta Gerwig’s directorial debut Lady Bird, but she’s also Jonah Hill’s kid sister!

Beanie Feldstein Jonah Hill
Credit: Todd Williamson/Getty Images

Jonah Hill and sister Beanie Feldstein attend the after party for the premiere of Universal Pictures' "Neighbors 2: Sorority Rising" on May 16, 2016 in Los Angeles, California.

Todd Williamson/Getty Images

Scroll down below to find out more about Beanie.

VIDEO: 2017 SAG Awards Red Carpet Fashion

Beanie Isn’t Her Real Name

First things first, Miss Feldstein’s given name is Elizabeth Greer Feldstein. “Beanie” is a nickname her British nanny called her as a kid.

Lady Bird Wasn’t Her Film Debut

Beanie’s been on screen since 2002 when she appeared in an episode of My Wife and Kids. Notably, Feldstein appeared in 2016’s Neighbors 2: Sorority Rising.

She’s Best Friends with Dear Evan Hansen’s Ben Platt

Beanie and Ben went to Havard-Westlake School for high school together.

She Didn’t Go to Drama School

Beanie graduated from Wesleyan University with a degree in sociology.

The Girl Can Sing!

Feldstein just concluded her time on Broadway in Hello, Dolly!

She Wore Her Prom Dress to the SAG Awards

The black Kay Unger gown (photographed below) Beanie wore to the Screen Actors Guild Awards was her high school prom dress. "I put it on and it fit, surprisingly maybe better than it did in high school!" Feldstein gushed to The Cut. "I looked at myself and I was like, WHAT!? My mom and her best friend were just laughing so hard, like, ‘You have to wear it! There’s just no other dress that would be better.'"

Beanie Feldstein
Credit: Frazer Harrison/Getty Images

The gesture doubled as an ode to her Lady Bird character. "It’s just a gorgeous dress, and I love how my character’s story ends at the prom, so like, for the first time I’m going to an awards show as a nominee with the cast, it’s like, you gotta wear your prom dress, girl, and honor Julie.”