I-N
| Title | Director | Cast | Genre | Notes |
|---|---|---|---|---|
| It's a Wonderful Life | Frank Capra | James Stewart, Donna Reed, Lionel Barrymore | Fantasy | RKO Pictures |
| The James Brothers of Missouri | Fred C. Brannon | Keith Richards, Noel Neill | Western | Republic Pictures |
| The Jolson Story | Alfred E. Green | Larry Parks, William Demarest | Biopic | Columbia Pictures |
| Just Before Dawn | William Castle | Warner Baxter | Mystery | |
| The Kid from Brooklyn | Norman Z. McLeod | Danny Kaye, Virginia Mayo, Vera-Ellen | Comedy | Remake of The Milky Way 1936 |
| The Killers | Robert Siodmak | Ava Gardner, Burt Lancaster, Edmond O'Brien | Film noir | Universal Pictures |
| King of the Forest Rangers | Spencer Gordon Bennet | Larry Thompson | Serial | RKO Pictures |
| Kitty Kornered | Robert Clampett | Animated | Warner Bros. | |
| Lady Luck | Edwin L. Marin | Robert Young, Barbara Hale | Comedy | RKO Pictures |
| Little Giant | William A. Seiter | Abbott and Costello | Comedy | Universal Pictures |
| The Locket | John Brahm | Laraine Day, Brian Aherne, Robert Mitchum | Film noir | RKO Pictures |
| Lost City of the Jungle | Russell Hayden | Serial | Universal Pictures | |
| Make Mine Music | Jack Kinney, Clyde Geronimi | Dinah Shore, Benny Goodman, The Andrews Sisters | Animated film | Walt Disney |
| The Man Who Dared | John Sturges | George Macready, Forrest Tucker | Drama | Columbia Pictures |
| The Milky Waif | Hanna Barbera | Tom and Jerry | Animated | MGM |
| Monkey Businessmen | Edward Bernds | Three Stooges | Short subject | Columbia Pictures |
| Mr. Ace | Edwin L. Marin | George Raft, Sylvia Sydney | Crime | |
| Murder in the Music Hall | John English | Nancy Kelly, Vera Ralston | Musical | |
| My Darling Clementine | John Ford | Henry Fonda, Victor Mature, Walter Brennan, Ward Bond | Western | 20th Century Fox |
| My Reputation | Curtis Bernhardt | Barbara Stanwyck, George Brent | Romance | Warner Bros. |
| The Mysterious Mr. M | Lewis Collins, V. Keays | Serial | Universal Pictures | |
| The Mysterious Mr. Valentine | Philip Ford | William Henry, Linda Stirling, Virginia Christine | Film noir | Republic Pictures |
| Night and Day | Michael Curtiz | Cary Grant, Alexis Smith, Jane Wyman | Musical | Biopic of Cole Porter |
| Night Editor | Henry Levin | William Gargan, Janis Carter | Film noir | Columbia Pictures |
| A Night in Casablanca | Archie Mayo | Marx Brothers, Sig Ruman | Comedy | United Artists |
| Nobody Lives Forever | Jean Negulesco | John Garfield, Geraldine Fitzgerald | Film noir | Warner Bros. |
| Nocturne | Edwin L. Marin | George Raft, Lynn Bari, Virginia Huston | Film noir | RKO Pictures |
| Notorious | Alfred Hitchcock | Cary Grant, Ingrid Bergman, Claude Rains | Suspense | RKO Pictures |
Read more about this topic: List Of American Films Of 1946