Question: Ennio Morricone composed the score for the 1986 British period drama written by whom?

Context paragraphs:
We All Love Ennio Morricone: We All Love Ennio Morricone is a 2007 tribute album honoring noted film composer Ennio Morricone.  It features a diverse lineup of artists including Andrea Bocelli, Metallica, Bruce Springsteen, Roger Waters, and Celine Dion.  Also, industry giant Quincy Jones, an admirer of Morricone’s work as a composer for many years, enlisted his longtime songwriting collaborators Alan and Marilyn Bergman to write the lyrics to "I Knew I Loved You", which Dion sang to Morricone’s "Deborah's Theme" from "Once Upon a Time in America".  Bruce Springsteen won the Grammy Award Best Rock Instrumental Performance for his version of "Once Upon A Time In The West", beating out Metallica who was nominated for their cover of "The Ecstasy of Gold", also from this album.  The album sold over 120,000 copies in Italy alone

The Good, the Bad and the Ugly: The Good, the Bad and the Ugly (Italian: "Il buono, il brutto, il cattivo" ,  "The good, the ugly, the bad" ) is a 1966 epic Spaghetti Western film directed by Sergio Leone and starring Clint Eastwood, Lee Van Cleef, and Eli Wallach in their respective title roles.  Its screenplay was written by Age & Scarpelli, Luciano Vincenzoni and Leone (with additional screenplay material and dialogue provided by an uncredited Sergio Donati), based on a story by Vincenzoni and Leone.  Director of photography Tonino Delli Colli was responsible for the film's sweeping widescreen cinematography, and Ennio Morricone composed the film's score including its main theme.  It was an international co-production between Italy, Spain, West Germany and the United States.

The Mission (1986 film): The Mission is a 1986 British period drama film about the experiences of a Jesuit missionary in 18th century South America.  Written by Robert Bolt and directed by Roland Joffé, the film stars Robert De Niro, Jeremy Irons, Ray McAnally, Aidan Quinn, Cherie Lunghi, and Liam Neeson.

Yo-Yo Ma Plays Ennio Morricone: Yo-Yo Ma Plays Ennio Morricone is a 2004 album of recordings from Morricone's various film scores by cellist Yo-Yo Ma and Ennio Morricone.  The album was recorded with the Roma Sinfonietta Orchestra and Gilda Buttà on piano.  Morricone functioned as orchestrator, conductor and producer.  It was released as a standard compact disc on September 28, 2004 (093456), and a DualDisc using Dolby Digital 5.1 Surround Sound on February 8, 2005 (093472).  Ma also toured a suite of Morricone's music.

Here's to You (song): "Here's to You" is a song by Ennio Morricone and Joan Baez, released in 1971 as part of the soundtrack of the film "Sacco e Vanzetti", directed by Giuliano Montaldo.  The lyrics are by Baez herself and the music is by Ennio Morricone.

Spaghetti Western Orchestra: The Spaghetti Western Orchestra, formerly the Ennio Morricone Experience, is a quintet of musicians who perform music from spaghetti westerns, especially the music of Ennio Morricone.

Pearls – Amii Stewart Sings Ennio Morricone: Pearls – Amii Stewart Sings Ennio Morricone is a studio album by Amii Stewart released in 1990.  The album which covers many of film composer Ennio Morricone's best known songs was recorded with Rome's Philharmonic Orchestra.

Gabriel's Oboe: "Gabriel's Oboe" is the main theme for the 1986 film "The Mission" directed by Roland Joffé.  The theme was written by Italian composer Ennio Morricone, and has since been arranged and performed several times by artists such as Yo-Yo Ma, Holly Gornik, and Brynjar Hoff, among others.  The theme has been called "unforgettable" and a "celebrated oboe melody".  Vocalist Sarah Brightman begged Morricone to allow her to put lyrics to the theme to create her own song, "Nella Fantasia".  In 2010, Morricone encouraged soprano Hayley Westenra to write English lyrics for "Gabriel's Oboe" in her album "Paradiso".

Ennio Morricone: Ennio Morricone, (] ; born 10 November 1928) is an Italian composer, orchestrator, conductor, and former trumpet player.  He composes a wide range of music styles, making him one of the most versatile, experimental and influential composers of all time, working in any medium.  Since 1946 Morricone has composed over 500 scores for cinema and television, as well as over 100 classical works.  His filmography includes over 70 award-winning films, including all Sergio Leone films since "A Fistful of Dollars" (including "The Good, the Bad and the Ugly" and "Once Upon a Time in the West"), all Giuseppe Tornatore films (since "Cinema Paradiso"), "The Battle of Algiers", Dario Argento's "Animal Trilogy", Bernardo Bertolucci's "1900", "", "Days of Heaven", several major films in French cinema, in particular the comedy trilogy "La Cage aux Folles I", "II", "" and "Le Professionnel", John Carpenter's "The Thing", Roland Joffé's "The Mission", Brian De Palma's "The Untouchables" and "Mission to Mars", Barry Levinson's "Bugsy" and "Disclosure", Wolfgang Petersen's "In the Line of Fire", Warren Beatty's "Bulworth", Liliana Cavani's "Ripley's Game" and Quentin Tarantino's "The Hateful Eight".

The Hateful Eight (soundtrack): The Hateful Eight is the soundtrack album to Quentin Tarantino's motion picture "The Hateful Eight".  The soundtrack includes the first complete original score for a Tarantino film and is composed, orchestrated and conducted by Ennio Morricone.  Morricone composed 50 minutes of original music for "The Hateful Eight".

Supporting paragraphs: Ennio Morricone The Mission (1986 film)
Answer: Robert Bolt