Title: The Key (1934 film)
Content:  The Key is a 1934 American Pre-Code film directed by Michael Curtiz. It was re-issued as High Peril (pre-release title Sue of Fury) in 1960. The story, concerning a love triangle, is set during the Irish War of Independence.
Title: The Key (1983 film)
Content:  The Key (La chiave) is an Italian erotic film directed by Tinto Brass. Set in Venice under the fascist regime in the early months of 1940, it recounts a tale of a voluptuous woman in her forties who is unable to respond to her husband but undergoes a belated sexual awakening with her daughter's fiancé, which enables her to please her husband at last. The film caused scandal in some quarters because it contains several explicit shots of nudity (characterised by certain critics as "gynecological") and sex scenes involving the well-known actress Stefania Sandrelli. However, the film ultimately obtained a decent level of commercial success.
Title: The Key (1958 film)
Content:  The Key is a 1958 British-American war film set in 1941 during the Battle of the Atlantic. It was based on the 1951 novel Stella by Jan de Hartog (later republished as The Distant Shore and The Key) and was directed by Sir Carol Reed. William Holden, Sophia Loren and Trevor Howard starred in the production. The key to a flat in wartime Britain may augur bad luck for a succession of tug captains of the Royal Navy whose task is to rescue crippled ships in "U-boat Alley." As each takes possession from his unfortunate predecessor, the flat's other occupant, a Swiss expatriate named Stella, apparently goes with it. The latest captain struggles with his conflicting fears and affection for its apparent jinx.
Title: The Key Man (1957 film)
Content:  The Key Man (released in the USA as Life at Stake) is a 1957 British B movie. The film was shot in black and white during a three week period in 1957 in response to an initiative by Anglo-Amalgamated to increase the number of British made B movies available. Directed by Montgomery Tully, the screenplay was adapted from his own original story by Julian MacLaren-Ross. MacLaren-Ross had been persuaded by producer Alec C. Snowden to write a script in late 1956 and after some doubts about the project delivered a screenplay to Snowden in January 1957, filming was started and completed the next month. The film was subsequently released in the USA by United Artists under the title Life at Stake. The story was adapted as a radio play and broadcast on the BBC Home Service in August 1960.
Title: The Key (1958 film)
Content: William Holden as David Ross ; Sophia Loren as Stella ; Trevor Howard as Chris Ford ; Oskar Homolka as Captain Van Dam, who alternates command of the tug with David ; Kieron Moore as Kane ; Bernard Lee as Wadlow, the head of the salvage unit ; Beatrix Lehmann as Housekeeper ; Noel Purcell as Hotel Porter ; Bryan Forbes as Weaver, mate of W88 ; Sidney Vivian as Grogan ; Rupert Davies as Baker ; Russell Waters as Sparks ; Irene Handl as Clerk ; John Crawford as American Captain ; Jameson Clark as English Captain 
Title: The Key (1934 film)
Content: William Powell as Capt. Bill Tennant ; Edna Best as Norah Kerr ; Colin Clive as Capt. Andrew Kerr ; Hobart Cavanaugh as Homer, Tennant's aide ; Halliwell Hobbes as General C.O. Furlong ; Donald Crisp as Peadar Conlan ; J.M. Kerrigan as O'Duffy ; Henry O'Neill as Dan ; Phil Regan as Irishman killed by Capt. Kerr ; Arthur Treacher as Lt. Merriman, Furlong's aide ; Maxine Doyle as Pauline O'Connor ; Arthur Aylesworth as Kirby ; Gertrude Short as Evie, a barmaid ; Anne Shirley as Flower Girl (as Dawn O'Day) 
Title: The Key (1971 film)
Content:  The Key (Klíč) is a 1971 Czechoslovak drama film directed by Vladimír Čech. It was entered into the 7th Moscow International Film Festival where it won a Silver Prize.
Title: The Seventh Key
Content:  The Seventh Key is a Norwegian series of English lessons produced by Norwegian Broadcasting Corporation in 1969. It was produced for use in English lessons in Norwegian, Danish, Swedish and Finnish schools. It was also broadcast in The Netherlands. The Seventh Key is a suspense story about an inheritance case. The story was written by Michael Smee and Lewis Jones. Producer/Director was Egil Eikvil. It was aired on Norwegian TV (School TV) from 1969 to 1975. Starring: Diana Chappell, Cheryl Conte, Geoffrey Hinsliff, David Munro. Music by Kåre Furuholmen. Other similar series made by the Norwegian Broadcasting Corporation by the same writers and the same producer/director are The Green Umbrella, The Mystery On The Moor and Port of Secrets.
Title: Turn the Key Softly
Content:  The film was based on a novel published in 1952. The censor, A. Watkin, a playwright, made some suggestions for cuts to enable the film to be passed. Kathleen Harrison had to spend two hours in the make up chair every morning. This was Joan Collins's first film under a new contract she had signed with Rank. Terence Morgan was also under contract to Rank.
Title: The Key of the World
Content:  The Key of the World is a 1918 British silent romance film direcred by J.L.V. Leigh and starring Eileen Molyneux, Heather Thatcher and Eric Harrison. It was made by British Gaumont at Lime Grove Studios in Shepherd's Bush. It was based on a novel by Dorin Craig.

Question: Who was the screenwriter for The Key?
Answer: Jan de Hartog.
F.R. Eckmar.