The mustache! Tom Hanks is back, classic smile and all, this time in "Saving Mr. Banks," a film that tells the story of Walt Disney's quest to turn "Mary Poppins" from a book into a movie.
The two-time Oscar Winner takes on the role of Disney himself, who made a promise to his daughters to turn their favorite book into what would become the 1964 classic starring Julie Andrews and Dick Van Dyke.
The film's trailer shows off Hanks' transformation, vintage mustache included, alongside Emma Thompson, who plays "Mary Poppins" author P.L. Travers in the movie - due out in theaters December of this year.
"Twenty years ago, I made a promise to my daughters that I would make your Mary Poppins fly off the pages of your books," Disney tells Travers in the clip.
Thompson plays an unwavering champion to keep her famous character true to her work.
"I won't have her turned into one of your silly cartoons," she says in a scene, just after throwing what looks to be a script out the window.
The movie, set for a Dec. 20 release, will chronicle the back and forth between Disney and Travers, and shed light on how her character comes from her own personal life experiences.
"Saving Mr. Banks" also stars Paul Giamatti, Jason Schwartzman and B.J. Novak.
ABC News is owned by The Walt Disney Co., which is producing this film.