| Titre | Réalisateur | Distribution | Genre | Notes | 
| Babies for Sale | Charles Barton | Rochelle Hudson, Glenn Ford, Miles Mander | Drama |  | 
| Bad Man from Red Butte | Ray Taylor | Johnny Mack Brown, Bob Baker, Fuzzy Knight | Western |  | 
| The Bank Dick | Edward F. Cline | W. C. Fields, Cora Witherspoon, Una Merkel | Comédie |  | 
| Barnyard Follies | Frank McDonald | Mary Lee, Rufe Davis, June Storey | Musical |  | 
| Before I Hang | Nick Grinde | Boris Karloff, Evelyn Keyes, Bruce Bennett | Crime, film de Science fiction |  | 
| Behind the News | Joseph Santley | Lloyd Nolan, Doris Davenport, Frank Albertson | Drama | Nommé pour un Oscar du cinéma. | 
| Beyond the Sacramento | Lambert Hillyer | Wild Bill Elliott, Evelyn Keyes, Dub Taylor | Western |  | 
| Beyond Tomorrow | A. Edward Sutherland | Harry Carey, C. Aubrey Smith, Charles Winninger | Fantasy Romance |  | 
| A Bill of Divorcement | John Farrow | Maureen O'Hara, Adolphe Menjou, Fay Bainter | Drama | Version de A Bill of Divorcement (film de 1932). | 
| Billy the Kid in Texas | Sam Newfield | Bob Steele, Terry Walker, Al St. John, Carleton Young | Western | 2e film (sur 6) avec Bob Steele de la série Billy the Kid. | 
| Billy the Kid Outlawed | Sam Newfield | Bob Steele, Louise Currie, Al St. John, Carleton Young | Western | 1er film (sur 6) avec Bob Steele de la série Billy the Kid. | 
| Billy the Kid's Gun Justice | Sam Newfield | Bob Steele, Al St. John, Louise Currie, Carleton Young | Western | 3e film (sur 6) avec Bob Steele de la série Billy the Kid. Version de Billy the Kid (film de 1930). | 
| The Biscuit Eater | Stuart Heisler | Billy Lee, Cordell Hickman, Richard Lane | Drama |  | 
| Bitter Sweet | W. S. Van Dyke | Jeanette MacDonald, Nelson Eddy, George Sanders | Musical | Nommé pour 2 Academy Awards. Remake de Bitter Sweet (1933 British film). | 
| Black Diamonds | Christy Cabanne | Richard Arlen, Andy Devine, Kathryn Adams Doty | Film policier |  | 
| Black Friday | Arthur Lubin | Boris Karloff, Béla Lugosi, Stanley Ridges | Science fiction |  | 
| Blazing Six Shooters | Joseph H. Lewis | Charles Starrett, Iris Meredith, Dick Curtis | Western |  | 
| Blondie Has Servant Trouble | Frank R. Strayer | Penny Singleton, Arthur Lake | Comédie | 6e film (sur 28) avec le personnage de Blondie. | 
| Blondie on a Budget | Frank R. Strayer | Penny Singleton, Arthur Lake | Comédie | 5e film (sur 28) avec le personnage de Blondie. | 
| Blondie Plays Cupid | Frank R. Strayer | Penny Singleton, Arthur Lake | Comédie | 7e film (sur 28) avec le personnage de Blondie. | 
| The Blue Bird | Walter Lang | Shirley Temple, Spring Byington, Nigel Bruce | Fantasy | Nommé pour 2 Academy Awards. | 
| Boom Town | Jack Conway | Clark Gable, Spencer Tracy, Claudette Colbert | Aventure Drama | Nommé pour 2 Academy Awards. no 4 des meilleures recettes. | 
| Boss of Bullion City | Ray Taylor | Johnny Mack Brown, Fuzzy Knight, Nell O'Day | Western |  | 
| Bowery Boy | William Morgan | Dennis O'Keefe, Louise Campbell, Jimmy Lydon | Crime |  | 
| Boys of the City | Joseph H. Lewis | Bobby Jordan, Leo Gorcey, Hal E. Chester | Comédie Thriller | 2e film (sur 22) de la série East Side Kids series. | 
| The Boys from Syracuse | A. Edward Sutherland | Allan Jones, Irene Hervey, Martha Raye | Musical | Nommé pour 2 Academy Awards. | 
| Brigham Young | Henry Hathaway | Tyrone Power, Linda Darnell, Dean Jagger | Film biographique |  | 
| British Intelligence | Terry O. Morse | Boris Karloff, Margaret Lindsay, Bruce Lester | War Film d'espionnage | Version de Three Faces East (film muet de 1926). | 
| Broadway Melody of 1940 | Norman Taurog | Fred Astaire, Eleanor Powell, George Murphy | Musical | 4e et dernier film de la série The Broadway Melody series. | 
| Broken Strings | Bernard B. Ray | Clarence Muse, Sybil Lewis, William Washington | Drama |  | 
| Brother Orchid | Lloyd Bacon | Edward G. Robinson, Humphrey Bogart, Ann Sothern | Comédie policière |  | 
| Brother Rat and a Baby | Ray Enright | Priscilla Lane, Wayne Morris, Jane Bryan | Comédie | Suite de Brother Rat (1938 film). | 
| Buck Benny Rides Again | Mark Sandrich | Jack Benny, Ellen Drew, Eddie Anderson | Comédie Western |  | 
| Bullet Code | David Howard | George O'Brien, Virginia Vale, Slim Whitaker | Western | Remake de Melody of the Plains (1937 film). | 
| Bullets for Rustlers | Sam Nelson | Charles Starrett, Lorna Gray, Bob Nolan | Western |  | 
| Buzzy Rides the Range | Richard C. Kahn | Robert "Buzz" Henry, David O'Brien, Claire Rochelle | Western |  |