Title: Separation (2021 film)
Content:  In October 2018, it was announced Rupert Friend would star in the film, with William Brent Bell directing from a screenplay by Nick Amadeus and Josh Braun. Bell, Jordan Yale Levine, Jordan Beckerman, Russ Posternak, Jesse Korman, Clay Pecorin and Russell Geyser, will serve as producers under their Yale Productions and RainMaker Films banners, respectively. In November 2018, Mamie Gummer, Madeline Brewer, Brian Cox and Violet McGraw joined the cast of the film. In early 2020, the film was in final stages of post-production.
Title: Separation (1967 film)
Content:  Separation, a film produced in 1967 and released in 1968, was written by and starred Jane Arden and directed by Jack Bond.
Title: Separation (2021 film)
Content:  Separation is a 2021 American horror film directed by William Brent Bell, from a screenplay by Nick Amadeus and Josh Braun. It stars Rupert Friend, Mamie Gummer, Madeline Brewer, Violet McGraw, Simon Quarterman, and Brian Cox. It was released on April 30, 2021, by Open Road Films and Briarcliff Entertainment. The film received mainly negative reviews from critics.
Title: Separation (2021 film)
Content: Rupert Friend as Jeff Vahn ; Mamie Gummer as Maggie Vahn ; Madeline Brewer as Samantha Nally ; Brian Cox as Paul Rivers ; Violet McGraw as Jenny Vahn ; Simon Quarterman as Alan Ross ; Mark Pettograsso as Brian Cox's stunt double 
Title: Separation (2013 film)
Content: Sarah Manninen as Liz ; Peter Stebbings as Jack ; Dmitry Chepovetsky as Geoffrey ; Al Sapienza as Elliot ; Rob deLeeuw as Guy ; Barbara Gordon as Mom ; Arcadia Kendal as Angie 
Title: Separation (1967 film)
Content: Jane Arden as Jane ; David de Keyser as Husband ; Ann Lynn as Woman ; Iain Quarrier as Lover ; Terence De Marney as Old man 
Title: A Separation
Content:  The film premiered on 9 February 2011 at the 29th Fajr International Film Festival in Tehran. Six days later it played in Competition at the 61st Berlin International Film Festival. Farhadi had previously competed at the festival's 2009 edition with About Elly, for which he had received the Silver Bear for Best Director. A Separation was distributed in Iran through Filmiran. Distribution rights for the United Kingdom were acquired by Artificial Eye.
Title: Separation (2013 film)
Content:  Separation is a 2013 Canadian thriller film directed by Greg White and his feature film directorial debut. The film was released on video on demand on April 15, 2013 and stars Sarah Manninen and Peter Stebbings as a married couple struggling to save their lives as well as their marriage.
Title: Separation City
Content:  Separation City is a 2009 New Zealand film starring Joel Edgerton, Rhona Mitra, Danielle Cormack, and Les Hill. It is directed by Paul Middleditch. Filming concluded in June, 2009, after 5 weeks of shooting. It is a comedy-drama, following the collapse of two marriages, set in Wellington.
Title: Separation (2021 film)
Content:  In March 2021, Open Road Films and Briarcliff Entertainment acquired distribution rights to the film, and set it for an April 23, 2021, release. It was then pushed back to April 30, 2021.

Question: Who was the producer of A Separation?
Answer: Asghar Farhadi.