Johnny Depp can't seem to keep his pants on. 

While filming a scene for his new movie "Mortdecai" in London, the 50-year-old actor was photographed dropping his pants and flashing his boxers.

In the picture, the "Pirates of the Caribbean" actor, who's now sporting a brassy blonde hairstyle and a mustache, stands with his pants lying around his ankles, giving everyone around a clear glimpse of his printed underwear.

Depp is also wearing bright red socks held up by sock garters. His look is completed with a collared button-down shirt, black sweater, and dark-colored coat. The brunette actor has made a clear transformation for his new role, debuting his blond hair in October at the BFI Awards.

Just weeks before, Depp was spotted filming an action scene in which he's hit by a speeding vintage Rolls Royce. The "Lone Rancher" actor was wearing a three-piece suit, pink shirt, blue tie and long black winter coat.

In "Mortdecai," Depp plays a roguish art dealer, Charlie Mortdecai, who travels across the world searching for a stolen painting "rumored to contain a secret code that gains access to hidden Nazi gold."

"Mortdecai" reunites Depp with filmmaker David Koepp, who directed 2004's "Secret Window". The film costars Gwyneth Paltrow, Olivia Munn, Ewan McGregor and Paul Bettany.

According to United International Press, Depp recently signed on to reprise his role in Disney's live-action "Alice in Wonderland 2". Along for the ride is actrss Mia Wasikowska.

James Bobin, who has directed "The Muppets" and "Flight of the Conchords," has reportedly signed on to direct the film. Joe Roth, Jennifer Todd and Suzanne Todd are producing, according to The Hollywood Reporter.

"Alice in Wonderland" directed by Tim Burton, earned $1.02 billion at the box office. "Alice in Wonderland 2" is set to be released May 27, 2016.