Helmer Marc Forster is no longer attached to World War II drama “The War Magician.”

The project, set up at Lonetree Entertainment, is based on David Fisher’s best-selling book and tells the story of real-life British magician Jasper Maskelyne, who adapted the core principles of stage magic to World War II. Forster had been eying the project but is no longer involved, his reps confirmed Thursday.

Book was originally purchased by Tom Cruise and set up at Paramount, with Cruise attached to star, before the actor’s deal with the studio fell through and the option ran out on the book.

Forster, who recently wrapped production on “World War Z,” is repped by CAA and Management 360.