Johnny Depp on How 'Mortdecai's' Unique Mustache Became an Unexpected Star

Carly Steel chatted with Johnny Depp about his new movie Mortdecai and how his mustache basically became a co-star in the movie.

ET special correspondent Carly Steel chatted with Johnny Depp about his new movie Mortdecai and how his mustache basically became a co-star in the movie.

In the film, Depp stars in the titular role of Charles Mortdecai, a debonair (albeit dimwitted) art dealer, who must travel the globe to recover a stolen painting. The piece of art in question is rumored to be linked to a lost bank account filled with Nazi gold. The character is from the 1970s book anthology The Mortdecai Trilogy by Kyril Bonfiglioli.

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In bringing his character to life, Depp had a hand in creating the distinct mustache he wore for the role.

"Charlie believes the absolute, ultimate work of art is on his upper lip," Depp explained.

The film also stars Paul Bettany, Ewan McGregor, Olivia Munn, Jeff Goldblum and Gwyneth Paltrow, whose gag reflex is triggered by Mortdecai's mustache in the film. Steel asked Depp how his significant other, Amber Heard, would react if he grew a mustache like his character.

"I know how I'd react," Depp said. "I'd sprint."

In addition to Mortdecai, opening Jan. 23, Depp also has another movie coming out this year. The 51-year-old Golden Globe winner, worked with his 15-year-old daughter Lily-Rose in the upcoming thriller Yoga Hosers.

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"I should take advice from her," Depp told ET when asked if he gave his daughter any pointers. "It was incredible. I saw my little girl through the distance of the lens, and on the monitor I saw her as a young woman and it was quite amazing. She's beautiful. I was very proud of her."

Yoga Hosers is slated to premiere June 1.