| Title | Year | Status | Character |
|---|
| Bless the Beasts & Children | 1971 | | |
| R.P.M. | 1970 | | |
| The Secret of Santa Vittoria | 1969 | | |
| Barefoot in the Park | 1967 | as William Lyon | |
| Dead Heat on a Merry-Go-Round | 1966 | as William Lyon | |
| Lord Love a Duck | 1966 | | |
| Major Dundee | 1965 | as William A.Lyon | |
| The Young Lovers | 1964 | | |
| Gidget Goes to Rome | 1963 | | |
| The Man from the Diners' Club | 1963 | film editor | |
| Diamond Head | 1962 | | |
| Five Finger Exercise | 1962 | | |
| Sail a Crooked Ship | 1961 | | |
| Gidget Goes Hawaiian | 1961 | | |
| A Raisin in the Sun | 1961 | | |
| Midnight Lace | 1960 | uncredited | |
| Song Without End | 1960 | | |
| They Came to Cordura | 1959 | | |
| Gidget | 1959 | | |
| Me and the Colonel | 1958 | film editor | |
| Cowboy | 1958 | | |
| Quiz Whizz | 1958 | Short as William Lyon | |
| The Hard Man | 1957 | as William Lyon | |
| Horsing Around | 1957 | Short as William Lyon | |
| The Garment Jungle | 1957 | as William Lyon | |
| The Shadow on the Window | 1957 | | |
| Nightfall | 1956 | | |
| Storm Center | 1956 | | |
| Picnic | 1955 | | |
| Count Three and Pray | 1955 | | |
| The Man from Laramie | 1955 | as William Lyon | |
| The Long Gray Line | 1955 | | |
| The Caine Mutiny | 1954 | | |
| Slaves of Babylon | 1953 | | |
| From Here to Eternity | 1953 | as William Lyon | |
| The 49th Man | 1953 | | |
| Fort Ti | 1953 | | |
| The Member of the Wedding | 1952 | | |
| Cavalcade of America | 1952 | TV Series 1 episode | |
| The Happy Time | 1952 | | |
| Thief of Damascus | 1952 | as William Lyon | |
| Death of a Salesman | 1951 | | |
| Ten Tall Men | 1951 | as William Lyon | |
| Saturday's Hero | 1951 | as William Lyon | |
| The Fuller Brush Girl | 1950 | as William Lyon | |
| No Sad Songs for Me | 1950 | as William Lyon | |
| Cargo to Capetown | 1950 | as William Lyon | |
| Jolson Sings Again | 1949 | as William Lyon | |
| The Walking Hills | 1949 | as William Lyon | |
| To the Ends of the Earth | 1948 | as William Lyon | |
| The Guilt of Janet Ames | 1947 | uncredited | |
| Mr. District Attorney | 1947 | as William Lyon | |
| The Lone Wolf in Mexico | 1947 | as William Lyon | |
| The Jolson Story | 1946 | as William Lyon | |
| Divide and Conquer | 1943 | Documentary uncredited | |
| You Were Never Lovelier | 1942 | as William Lyon | |
| Sabotage Squad | 1942 | | |
| Submarine Raider | 1942 | | |
| Tramp, Tramp, Tramp! | 1942 | | |
| Lawless Plainsmen | 1942 | as William Lyon | |
| Harvard, Here I Come! | 1941 | as William Lyon | |
| Texas | 1941 | as William Lyon | |
| Sweetheart of the Campus | 1941 | | |
| Naval Academy | 1941 | as William Lyon | |
| The Phantom Submarine | 1940 | as William Lyon | |
| Arizona | 1940 | film editor - as William Lyon | |
| Too Many Husbands | 1940 | film editor - as William Lyon | |
| My Son Is Guilty | 1939 | as William Lyon | |
| Scandal Sheet | 1939 | | |
| Riders of Black River | 1939 | as William Lyon | |
| The Man They Could Not Hang | 1939 | as William Lyon | |
| The Man from Sundown | 1939 | as William Lyon | |
| Western Caravans | 1939 | | |
| Spoilers of the Range | 1939 | | |
| North of the Yukon | 1939 | | |
| Texas Stampede | 1939 | as William Lyon | |
| The Thundering West | 1939 | as William Lyon | |
| Rio Grande | 1938 | film editor - as William Lyon | |
| West of the Santa Fe | 1938 | as William Lyon | |
| The Colorado Trail | 1938 | | |
| South of Arizona | 1938 | as William Lyon | |
| West of Cheyenne | 1938 | as William Lyon | |
| Call of the Rockies | 1938 | as William Lyon | |
| Outlaws of the Prairie | 1937 | | |
| I'll Take Romance | 1937 | | |
| The Old Wyoming Trail | 1937 | as William Lyon | |
| One Man Justice | 1937 | as William Lyon | |
| Two-Fisted Sheriff | 1937 | as William Lyon | |
| Two Gun Law | 1937 | | |
| Trapped | 1937 | | |
| Find the Witness | 1937 | | |
| Slippery Silks | 1936 | Short as William Lyon | |
| The Cowboy Star | 1936 | film editor - as William Lyon | |
| Fibbing Fibbers | 1936 | Short as William Lyon | |
| Code of the Range | 1936 | as William Lyon | |
| Alibi for Murder | 1936 | | |
| A Pain in the Pullman | 1936 | Short as William Lyon | |
| Disorder in the Court | 1936 | Short as William Lyon | |
| Movie Maniacs | 1936 | Short as William Lyon | |
| Ants in the Pantry | 1936 | Short as William Lyon | |
| Three Little Beers | 1935 | Short as William Lyon | |
| His Bridal Sweet | 1935 | Short | |
| Restless Knights | 1935 | Short | |
| In the Dog House | 1934 | Short | |
$1.1 Million
