Off the top of my head ...
2008 Appaloosa
2007 No Country For Old Men -- contemporary western
2007 Assassination of Jesse James By the Coward Robert Ford
2003 Open Range
1999 The Hi-Lo Country -- contemporary western
1996 Lone Star -- contemporary western
1995 The Good Old Boys -- made-for-TV
1992 O Pioneers! -- Hallmark TV film
1992 Conagher
1991 Sarah Plain and Tall -- Hallmark TV film
1989 Lonesome Dove
1988 The Tracker -- made-for-cable
1987 The Quick and the Dead -- made-for-cable
1986 The Red-Head Stranger
1984 Calamity Jane -- made-for-TV
1983 Tender Mercies -- contemporary western
1982 Barbarosa
1982 Ballad of Gregorio Cortez
1980 Tom Horn
1980 The Long Riders
1979 The Sacketts -- TV mini-series
1979 Heartland
1979 Eagle's Wing
1978 Comes a Horseman -- contemporary western
1978 China 9 Liberty 37 -- American-made in Spain
1977 Another Man, Another Chance -- French-made in USA
1976 The Outlaw Josey Wales
1975 I Will Fight No More Forever
1974 Zandy's Bride -- Swedish-made in USA
1973 The Red Pony -- made-for-TV with Henry Fonda
1973 Pat Garrett and Billy the Kid
1973 Man Who Loved Cat Dancing
1972 Ulzana's Raid
1972 Pocket Money -- contemporary western
1972 The New Land -- Swedish-made in USA
1972 J.W. Coop -- contemporary western
1972 Junior Bonner -- contemporary western
1972 Jeremiah Johnson
1972 Bad Company
1971 McCabe & Mrs. Miller
1971 The Last Picture Show
1971 The Hired Hand
1971 Hannie Caulder -- American-made in Spain
1971 A Gunfight
1971 The Emigrants -- Swedish-made in USA
1970 Two Mules For Sister Sara
1970 Run, Simon, Run -- contemporary western, made-for-TV
1970 Monte Walsh
1970 A Man Called Horse
1970 Ballad of Cable Hogue
1969 The Wild Bunch
1969 Tell Them Willie Boy Is Here
1969 Support Your Local Sheriff
1969 Paint Your Wagon
1969 Butch Cassidy and the Sundance Kid
1968 Will Penny
1968 Villa Rides!
1968 The Stalking Moon
1968 The Shakiest Gun In the West
1968 Bandolero!
1967 La Soldadera -- Mexico
1967 Hour of the Gun
1967 Hombre
1966 The Professionals
1966 Duel at Diablo
1966 The Appaloosa
1965 The Shooting
1965 Ride In the Whirlwind
1965 The Rounders
1963 Hud -- contemporary western
1963 How the West Was Won
1962 Ride the High Country
1962 Lonely Are the Brave -- contemporary western
1961 One-Eyed Jacks
1961 The Misfits -- contemporary western
1960 The Unforgiven
1960 Sergeant Rutledge
1960 Pancho Villa and Valentina -- Mexico
1960 Flaming Star
1960 Cuando ¡Viva Villa! es la muerte -- Mexico
1960 Comanche Station
1959 The Wonderful Country
1959 Warlock
1959 The Hanging Tree
1959 La Cucaracha -- Mexico
1958 Tonka -- Disney
1958 Ride a Crooked Trail
1958 The Left-Handed Gun
1958 From Hell To Texas
1958 The Big Country
1957 3:10 to Yuma
1957 The Tin Star
1957 This Was Pancho Villa -- Mexico
1957 Old Yeller -- Disney
1957 The Lonely Man
1957 Gunfight at the O.K. Corral
1956 Seven Men From Now
1956 Man From Del Rio
1956 Bus Stop -- contemporary western
1955 Wichita
1955 The Man From Laramie
1955 The Littlest Outlaw -- Disney
1955 The Last Command
1955 Giant -- contemporary western
1955 Davy Crockett King of the Wild Frontier -- Disney
1955 Bandido
1954 Track of the Cat
1954 Ride Clear of Diablo
1954 The Outcast
1954 Masterson of Kansas
1954 Four Guns to the Border
1954 The Far Country
1954 The Command
1954 Bad Day at Black Rock -- contemporary western
1954 Apache
1953 Shane
1953 The Naked Spur
1953 Gun Fury
1953 Arrowhead
1952 Viva Zapata!
1952 Ride the Man Down
1952 High Noon
1952 The Big Sky
1952 Bend of the River
1951 Westward the Women
1951 Vengeance Valley
1951 Rawhide
1951 Along the Great Divide
1950 Wagon Master
1950 The Sundowners
1950 High Lonesome
1950 The Gunfighter
1950 Devil's Doorway
1950 Broken Arrow
1950 Ambush!
1949 Yellow Sky
1949 Roughshod
1949 The Red Pony
1949 Colorado Territory
1948 Station West
1948 Four Faces West
1948 Coroner Creek
1948 Blood On the Moon
1947 Sea of Grass
1947 Ramrod
1947 Pursued
1946 My Darling Clementine
1946 Duel In the Sun
1945 Along Came Jones
1943 The Ox-Bow Incident
1941 Western Union
1941 Tombstone the Town Too Tough to Die
1941 They Died With Their Boots On
1940 The Westerner
1940 The Return of Frank James
1940 The Mark of Zorro
1940 The Grapes of Wrath -- contemporary western
1940 Arizona
1939 The Marshall of Mesa City
1939 Jesse James
1939 Frontier Marshall
1938 The Cowboy and the Lady
1937 The Plainsman
1937 Borderland
1936 Trail Dust
1936 Trail of the Lonesome Pine
1936 The Robin Hood of El Dorado
1936 The Phantom of Santa Fe
1936 Let's Go With Pancho Villa -- Mexico
1936 The Bold Caballero
1935 The Arizonian -- with Richard Dix
1934 Viva Villa!
1934 Compadre Mendoza -- Mexico
1933 Prisoner 13 -- Mexico
1932 Law and Order -- with Walter Huston
1931 The Sunrise Trail -- with George O'Brien
1931 Riders of the Purple Sage -- with George O'Brien
1931 The Cisco Kid -- with Warner Baxter
1931 Cimarron
1930 The Lone Star Ranger -- with George O'Brien
1930 Last of the Duanes -- with George O'Brien
1930 Billy the Kid -- with Johnny Mack Brown
1929 The Virginian -- with Gary Cooper
1928 The Wind
1928 In Old Arizona -- Warner Baxter as the Cisco Kid
1927 Nevada -- with Gary Cooper
1927 The Last Outlaw -- with Gary Cooper
1925 Tumbleweed -- with William S. Hart
1924 The Iron Horse
1923 The Covered Wagon
1920 Wagon Tracks -- with William S. Hart
1917 Straight Shooting
1917 The Narrow Trail -- with William S. Hart
1916 Hell's Hinges -- with William S. Hart
1915 Passing of the Oklahoma Outlaw
1912 Custer's Last Fight
i shortchanged the silents because I'm too tired to go look up the dates.
Richard