The 70th Cannes Film Festival took place from 17 to 28 May 2017, in Cannes, France. Spanish film director and screenwriter Pedro Almodóvar was the President of the Jury for the festival and Italian actress Monica Bellucci hosted the opening and closing ceremonies. Ismael's Ghosts, directed by French director Arnaud Desplechin, was the opening film for the festival.
 The festival celebrated its 70th edition. In late March 2017, the official poster of the festival was revealed featuring Italian actress Claudia Cardinale. The actress responded, "'I am honoured and proud to be flying the flag for the 70th Festival de Cannes, and delighted with this choice of photo. It's the image I myself have of the Festival, of an event that illuminates everything around … Happy anniversary!"
 The Palme d'Or was awarded to the Swedish film, The Square directed by Ruben Östlund, which also served as the closing night film of the festival.
 The films competing in the main competition section for the Palme d'Or were announced at a press conference on 13 April 2017: The Palme d'Or winner has been highlighted.
 The films competing in the Un Certain Regard section were announced at a press conference on 13 April 2017. Barbara, directed by Mathieu Amalric, was announced as the opening film for the Un Certain Regard section. The Un Certain Regard Prize winner has been highlighted.
 The following films were selected to be screened out of competition:
 The following films were selected to receive a special screening:
 The Cinéfondation section focuses on films made by students at film schools. The following 16 entries (14 fiction films and 2 animation films) were selected out of 2,600 submissions. Four of the films selected represent schools participating in Cinéfondation for the first time. The winner of the Cinéfondation First Prize has been highlighted.
 Out of 4,843 entries, the following films were selected to compete for the Short Film Palme d'Or. The Short film Palme d'Or winner has been highlighted.
 The full line-up for the Cannes Classics section was announced on 3 May 2017.
 The Cinéma de la Plage is a part of the Official Selection of the festival. The outdoors screenings at the beach cinema of Cannes are open to the public.
 The full selection for the Critics' Week section was announced on 21 April 2017, at the section's website. Sicilian Ghost Story, directed by Fabio Grassadonia and Antonio Piazza, was selected as the opening film for the Critics' Week section, while Brigsby Bear, directed by Dave McCary, was selected as its closing film. The feature film competition included, for the first time in the section's history, an animated film and a documentary film.
 The winner of the Nespresso Grand Prize has been highlighted:
 The winner of the Discovery Award for Short Film has been highlighted:
 The full selection for the Directors' Fortnight section was announced on 20 April 2017, at the section's website. Let the Sunshine In, directed by Claire Denis, was selected as the opening film for the Directors' Fortnight section and Patti Cake$, directed by Geremy Jasper, was selected as the closing film for the Directors' Fortnight section.
 The winner of the Art Cinema Award has been highlighted:
 The winner of the Illy Prize for Short Film has been highlighted:
 ACID, an association of French and foreign film directors, demonstrates its support for nine films each year, seeking to provide support from filmmakers to other filmmakers. The full ACID selection was announced on 21 April 2017, at the section's website.