Phineas and Ferb the Movie: Candace Against the Universe (originally titled The Phineas and Ferb Movie, sometimes promoted as The Phineas and Ferb Movie: Candace Against...) is the title of an upcoming animated film adaptation of Phineas and Ferb that is set to release on Disney+ in 2020.
A tie-in book by Disney Storybook Art Team and Disney Books has been listed on Amazon. It will contain 116 pages and is due to arrive on October 6th, 2020.
The release date for the book is a rough indication of when the movie can be expected to air on Disney+.
The following is the description for the book: "Phineas, Ferb, Perry the Platypus, and Dr. Doofenshmirtz are back for an interstellar adventure in this chapter book based on the new Disney+ original movie. When Candace is abducted by aliens, Phineas and Ferb have to team up with Dr. Doofenshmirtz to get her back . . . but what if she doesn't want to return to Earth?"
The image gallery for Phineas and Ferb the Movie: Candace Against the Universe may be viewed here.