Meet Michael Cera's Next Rising Costar, 'Youth In Revolt' Actress Portia Doubleday

Michael Cera has had a good streak with his leading ladies over the past few years, turning relative unknowns like Ellen Page and Kat Dennings into superstars (okay, maybe the strength of the movies they were starring in made them stars, but I digress). The most recent starlet to join him on screen is a face you won't recognize from battling mutants or being the grody friend of an ex-Playboy bunny.

Not much information is available about Portia Doubleday, the lucky lady who gets to play the manipulative, dangerous vixen Sheeni in January's "Youth in Revolt," but we at Hollywood Crush are here to give you the scoop. "Youth in Revolt" is the 21-year-old actress's first feature film — her other film credits include headlining the 2009 film "18" and starring as "Young Margaret" in 1997's " Legend of the Mummy."

Growing up in Los Angeles, Portia was part of an acting family. Her father Frank Doubleday most notably played the character Romero in John Carpenter's "Assault on Precinct 13" and "Escape from New York," and her mother is actress Christina Hart, who worked in sitcoms and television for 20 years from 1969 to 1989. Portia's sister is actress Kaitlin Doubleday, who is known best for her roles in "Waiting" and "Accepted."

"Youth in Revolt" was Portia's big break. "I just have been auditioning for a couple of years now," she told us in a recent interview. "When I was younger I did a lot of commercial stuff and my whole family is kind of acquainted with acting. It was really exciting."

Not only was she already familiar with the way Hollywood works by the time she landed her first major role, but she also was acquainted with one of her costars already. Justin Long, who plays her brother in the film, had costarred with her sister in both "Waiting" and "Accepted," and had been dating Kaitlin while Portia was in high school.

"He would literally pick me up from school," Portia said with a laugh. "That was so crazy because I wasn't acting at the time at all and I would just hear these stories and like I'd always wanted to get into it. So he [Justin] was like, 'I can't believe I'm a part of this first experience with you.'"

Though time will tell whether "Youth in Revolt" will make Portia the next Kat Dennings or Ellen Page, she is already thinking ahead to her next project.

"I'm going to work on this short, actually, with well, I don't even know, because it's not even for sure, but a couple of my friends," Portia told us, saying she had been talking with some friends over Thanksgiving about getting into work.

When we asked whether these were the same types of friends like Justin, who dated her sister while she was in high school ("Matthew Perry also dated her sister in high school," Michael Cera joked with us), Portia smoothly tossed back, " Just like Jennifer Aniston, Brad Pitt, Angelina Jolie. Some friends. It's not a big thing, just a couple friends of mine."

That is a short film we would pay our $11 to see.

You can catch Portia in her big screen debut when "Youth in Revolt" hits theaters on January 8.