Question: Leo McKern was in what epic romantic drama film directed by David Lean?

Context articles: Doctor Zhivago (film)
The Passionate Friends
Hot Enough for June
The Omen
Assignment K
Ryan's Daughter
Leo McKern
Help! (film)
The Sound Barrier
Brief Encounter

Doctor Zhivago (Italian: "Il dottor Zivago") is a 1965 British-Italian epic romantic drama film directed by David Lean.
 It is set in Russia between the years prior to World War I and the Russian Civil War of 1917–1922, and is based on the Boris Pasternak novel of the same name.
 While immensely popular in the West, the book was banned in the Soviet Union for decades.
 For this reason, the film could not be made in the Soviet Union and was instead filmed mostly in Spain.
The Passionate Friends is a 1949 British romantic drama film directed by David Lean.
 The film is based on "" by H. G. Wells.
 It describes a love triangle in which a woman cannot give up her affair with another man.
 The film was entered into the 1949 Cannes Film Festival.
Hot Enough for June is a 1964 British spy comedy film directed by Ralph Thomas, and featuring Dirk Bogarde, Sylva Koscina in her English film debut, Robert Morley and Leo McKern.
 It is based on the 1960 novel "The Night of Wenceslas" by Lionel Davidson.
 The film was cut by twenty minutes and retitled Agent 8¾ for the US release by the American distributor Central Distributing.
The Omen is a 1976 British-American supernatural horror film directed by Richard Donner, and written by David Seltzer.
 The film stars Gregory Peck, Lee Remick, David Warner, Harvey Spencer Stephens, Billie Whitelaw, Patrick Troughton, Martin Benson, and Leo McKern.
 The first installment of "The Omen" franchise, "The Omen" concerns a young child replaced at birth by American Ambassador Robert Thorn unbeknownst to his wife, after their own son is stillborn.
 They are surrounded by mysterious and ominous deaths, unaware that the child, Damien, is the Antichrist.
Assignment K is a 1968 Technicolor British thriller film directed by Val Guest in Techniscope, and starring Stephen Boyd, Camilla Sparv, Michael Redgrave and Leo McKern.
 The film was based on the 1964 novel "Department K" by Hartley Howard.
Ryan's Daughter is a 1970 epic romantic drama film directed by David Lean.
 The film, set in August 1917 - January 1918, tells the story of a married Irish woman who has an affair with a British officer during World War I, despite moral and political opposition from her nationalist neighbours; starring Robert Mitchum, Sarah Miles, John Mills, Christopher Jones, Trevor Howard and Leo McKern.
 The film is a re-telling of the plot of Gustave Flaubert's novel "Madame Bovary".
Reginald "Leo" McKern, AO (16 March 1920 – 23 July 2002) was an Australian actor who appeared in numerous British, Australian and American television programmes and films, and in more than 200 stage roles.
 Notable roles he portrayed include Clang in "Help!
" (1965), Thomas Cromwell in "A Man for All Seasons" (1966), Tom Ryan in "Ryan's Daughter" (1970), Paddy Button in "The Blue Lagoon" (1980), Dr. Grogan in "The French Lieutenant's Woman" (1981), Father Imperius in "Ladyhawke" (1985) and, in the role that made him a household name as an actor, Horace Rumpole, whom he played in "Rumpole of the Bailey".
 He also portrayed Carl Bugenhagen in the first and of "The Omen" series.
Help!
 is a 1965 British musical comedy-adventure film directed by Richard Lester, starring the Beatles–John Lennon, Paul McCartney, George Harrison and Ringo Starr—and featuring Leo McKern, Eleanor Bron, Victor Spinetti, John Bluthal, Roy Kinnear and Patrick Cargill.
 The second film starring The Beatles following Lester's "A Hard Day's Night", "Help!"
 sees the group come up against an evil cult.
 The soundtrack was released as an album, also called "Help!
".
The Sound Barrier (known in the United States, as Breaking Through the Sound Barrier and Breaking the Sound Barrier) is a British 1952 film directed by David Lean.
 It is a fictional story about attempts by aircraft designers and test pilots to break the sound barrier.
 It was David Lean's third and final film with his wife Ann Todd, but it was his first for Alexander Korda's London Films following the break-up of Cineguild.
 "The Sound Barrier" stars Ralph Richardson, Ann Todd, and Nigel Patrick.
Brief Encounter is a 1945 British romantic drama film directed by David Lean about British suburban life on the eve of World War 2, centering on Laura, a married woman with children, whose conventional life becomes increasingly complicated because of a chance meeting at a railway station with a stranger, Alec.
 They fall in love, bringing about unexpected consequences.