|Directed by||Richard Wallace|
|Written by|| Grover Jones (screenplay)|
I. A. R. Wylie (story)
|Produced by||Joe Pasternak|
|Starring|| Gloria Jean |
|Edited by||Frank Gross|
|Music by||Charles Previn|
|Distributed by||Universal Pictures|
|Budget||over $465,000 |
The Under-Pup is a 1939 American feature film by Richard Wallace that introduced soprano singing star Gloria Jean to the screen. 
The story, adapted by Grover Jones from a magazine story by Australian author I. A. R. Wylie, casts Gloria as a streetwise girl who is sent to a summer camp for wealthy girls. She is at first bullied by the other girls, but she stands up for herself and wins everyone over, including the girl who had bullied her the most, to earn a place in their group, "The Purple Order of Penguins".
Filming took place from May to June 1939.  It was originally budgeted at $445,000. 
The film had its premiere in Scranton. 
The film was well received, and was followed by an unofficial sequel, A Little Bit of Heaven (1940). Many of the cast members from The Under-Pup appear in the second film, but with different character names.
The film script was adapted for radio and was presented on Lux Radio Theater on April 15, 1940, with Gloria Jean and Nan Grey reprising their film roles.  
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Charles Clarence Robert Orville Cummings was an American film and television actor who appeared in roles in comedy films such as The Devil and Miss Jones (1941) and Princess O'Rourke (1943), and in dramatic films, especially two of Alfred Hitchcock's thrillers, Saboteur (1942) and Dial M for Murder (1954). He received five Primetime Emmy Award nominations, and won the Primetime Emmy Award for Best Actor in a Single Performance in 1955. On February 8, 1960, he received two stars on the Hollywood Walk of Fame for his contributions to the motion picture and television industries, at 6816 Hollywood Boulevard and 1718 Vine Street. He used the stage name Robert Cummings from mid-1935 until the end of 1954 and was credited as Bob Cummings from 1955 until his death.
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