Doktor Rej i đavoli (Serbian Cyrillic: Доктор Реј и ђаволи, Doctor Ray and the Devils) is a 2012 Serbian film directed by Dinko Tucaković. It is co-written by Tucaković and Saša Radojević with input from Dimitrije Vojnov.

Loosely based on actual events, the plot centers around famous American director Nicholas Ray's 1960s stay in SFR Yugoslavia on invitation by Ratko Dražević, the head of Avala Film studio and former Yugoslav state security operative. Since, according to Tucaković, the story of Ray's Belgrade stay is "quite foggy", the film's characters were treated "more as a myth than as a document". Additionally, since Dražević's specific biographical info is entirely sketchy and mostly based on anecdotes, the actor who plays him in the movie, Dragan Bjelogrlić, said that his portrayal is "based on legend rather than biography".

Additional actual figures that appear as characters in the film are film director D. W. Griffith, film star Orson Welles and his partner Oja Kodar, French actress Jeanne Moreau, Serbian writer Borislav Mihajlović Mihiz, Bosnian filmmaker Bahrudin Čengić, American film producer Samuel Bronston, and Ray's third wife Betty Utey. Also, some actual figures are thinly disguised and hinted at behind aliases because the filmmakers didn't obtain permission from their families to use them in the film. The character of Aleksa is the Serbian film director Saša Petrović, the character of Zlatan is Serbian writer Slobodan Selenić, while Ivica is Croatian film producer Branko Lustig.

The feature film (which is part of a larger project that also includes a yet to be made documentary and a yet to be released book) premiered on 4 March 2012 on the closing night of the 2012 FEST. The film goes into general theatrical release in Serbia from 27 September 2012.