Model Cara Delevingne has been trying to carve a career as a movie star and as she's going to be seen in her first starring role via "Paper Towns." Michelle Rodriguez's ex will also learn about dealing with controversial questions.

Like, who is her favorite Kardashian sister, for example.

Talking to Entertainment Tonight's Nischelle Turner, the English model was asked the question, and she hesitated a bit.

"Oh I can't do that. I mean, Kendall... but I love the whole family, I can't really pick one," said "Paper Towns" cast member Cara Delevingne.

It's no surprise that Michelle Rodriguez's ex picked Kendall Jenner as they are BFFs, and have been hanging together in various events. They also walked on runways on different fashion shows.

Kendall Jenner, a rising star in the modeling world, also acknowledged her closeness to Cara Delevingne when she posted on Instagram a month ago a composite side-by-side photo of her and the "Paper Towns" actress, showing quite a likeness.

She captioned the image, "I knew we were sisters @caradelevingne #Cake."

Speaking of "Paper Towns," Cara Delevingne's new film debuted another sneak peek at the 2015 MTV Movie Awards on Sunday.

John Green, who wrote the novel of the same title which the film is based on, told the audience per E!, "We're so excited to share this exclusive sneak peek at Paper Towns with you."

"Oh my god, I can't wait," Cara Delevingne added.

Aside from "Paper Towns," Michelle Rodriguez's ex landed perhaps the biggest break of her acting career as she snagged the role of Harley Quinn in the most anticipated film "Suicide Squad."

However, she declined to give more details about the film.

"It's so secretive I can't actually say or I'll get scolded. All we know now is, judging from the production photos getting posted on Instagram, the movie is going to have a pretty epic cast," Cara Delevingne told ET.