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| Title | Director | Cast | Genre | Notes |
|---|---|---|---|---|
| I Married a Witch | René Clair | Veronica Lake, Frederic March | Romantic comedy | United Artists |
| I Married an Angel | W. S. Van Dyke | Jeanette MacDonald, Nelson Eddy | Musical | MGM |
| In Old California | William C. McGann | John Wayne, Binnie Barnes | Western | Republic |
| In This Our Life | John Huston | Bette Davis, Olivia de Havilland | Drama | Warner Bros. |
| Invisible Agent | Edwin L. Marin | Ilona Massey, Jon Hall | War | Universal Pictures |
| It's All True | Orson Welles, Norman Foster | Shot in South America | ||
| It's Everybody's War | Short war propaganda | |||
| Jackass Mail | Norman Z. McLeod | Wallace Beery | Western | |
| Jam Session | Duke Ellington and his orchestra performing C Jam Blues. | Short | ||
| Japanese Relocation | Short war propaganda | Produced by the Office of War Information | ||
| Johnny Eager | Mervyn LeRoy | Robert Taylor, Lana Turner | Film noir | MGM |
| Jungle Book | Zoltan Korda | Sabu | Adventure | Alexander Korda Films for United Artists |
| Junior G-Men | action serial | Universal Pictures | ||
| Junior G-Men of the Air | Dead End Kids and the Little Tough Guys | action serial | Universal Pictures | |
| Kid Glove Killer | Fred Zinnemann | Van Heflin, Marsha Hunt | Crime | MGM |
| King of the Mounties | William Witney | Allan Lane, Gilbert Emery | Action adventure | Republic Pictures |
| Kings Row | Sam Wood | Ann Sheridan, Ronald Reagan, Robert Cummings | B movie drama | Warner Bros. |
| Larceny, Inc. | Lloyd Bacon | Edward G. Robinson, Jane Wyman, Broderick Crawford | Crime Comedy | Warner Bros. |
| The Mad Monster | Sam Newfield | George Zucco, Anne Nagel | Horror | |
| The Magnificent Ambersons | Orson Welles | Joseph Cotten, Anne Baxter | Drama Romance | RKO Pictures |
| The Major and the Minor | Billy Wilder | Ginger Rogers, Ray Milland | Comedy | Paramount Pictures |
| The Male Animal | Elliott Nugent | Henry Fonda, Olivia de Havilland | Romantic comedy | |
| The Man Who Came to Dinner | William Keighley | Monty Woolley, Bette Davis, Ann Sheridan, Billie Burke, Jimmy Durante | Comedy | |
| Manpower | Short war propaganda | Produced by the Office of War Information | ||
| Miss Annie Rooney | Edwin L. Marin | Shirley Temple, Dickie Moore, Guy Kibbee | Drama | United Artists |
| Moontide | Archie Mayo | Jean Gabin, Ida Lupino, Claude Rains | Drama | 20th Century Fox |
| Mrs. Miniver | William Wyler | Greer Garson, Walter Pidgeon, Teresa Wright | War drama | MGM Academy Award winner |
| The Mummy's Tomb | Harold Young | Horror | Universal Pictures | |
| My Favorite Blonde | Sidney Lanfield | Bob Hope, Madeleine Carroll | Comedy | Paramount |
| My Favorite Duck | Porky Pig and Daffy Duck | Animated comedy | ||
| My Gal Sal | Irving Cummings | Rita Hayworth, Victor Mature, Phil Silvers | Musical biopic | 20th Century Fox |
| My Sister Eileen | Alexander Hall | Rosalind Russell, Janet Blair | Musical | Columbia Pictures |
| 'Neath Brooklyn Bridge | Wallace Fox | Leo Gorcey, Huntz Hall | Comedy | Monogram Pictures |
| The News Parade of the Year 1942 | Eugene W. Castle | Short documentary | ||
| Night Monster | Ford Beebe | Bela Lugosi | Mystery horror | Universal Pictures |
| Night Plane from Chungking | Ralph Murphy | Robert Preston | War adventure drama | Paramount Pictures |
| Now, Voyager | Irving Rapper | Bette Davis, Claude Rains, Gladys Cooper | Drama | Warner Bros. |
Read more about this topic: List Of American Films Of 1942