Rosemary La Planche - Actor Profile

Rosemary La Planche

Acting
Updated: May 16, 2026
18Total Films
10.0 Highest Rated
Born: Oct 11, 1923
Birth Place: Los Angeles, California, USA

About Rosemary La Planche

From Wikipedia, the free encyclopedia Rosemary E. LaPlanche (October 11, 1923 – May 6, 1979) was an American beauty queen and actress. She won Miss California two years in a row (1940 and 1941), and won Miss America in 1941. LaPlanche moved to southern California from Kansas with her mother and sister, Louise LaPlanche, at a very early age. LaPlanche, who lived in Los Angeles, California, was Miss California in both 1940 and 1941. A new rule after her victory disallowed contestants from competing at the national level more than once. She also had an active career as a movie actress. She was married to Harry Koplan from 1947 until his death in 1973, and had two children: a daughter Carol and son Terry. LaPlanche became an actress, appearing in films such as Angels' Alley and in episodes of television programs like The Donna Reed Show. Her sister Louise LaPlanche also was an actress.

Rosemary La Planche Movies & Career Overview

The filmography of Rosemary La Planche reflects a career marked by diverse experimentation. Across 18 major appearances, the actor has built a reputation through performances in multiple genres and storytelling styles.

Dominant Genre

A large portion of Rosemary La Planche's work falls within the Comedy genre, where audiences tend to respond most strongly to their on-screen presence.

Success Ratio

Approximately 44% of Rosemary La Planche's films maintain ratings above 6.5, indicating a consistent level of audience approval.

One of the most highly rated entries in their career remains Swing Your Partner, which stands out as a key performance.

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Best Rosemary La Planche Movies Ranked

Must-watch hits from Rosemary La Planche's career based on audience ratings.

Full Filmography

Every movie Rosemary La Planche has appeared in, with audience ratings and verdicts.

YearMovieCharacterSuccessMore
1949 Federal Agents vs. Underworld, Inc. Laura Keith Hit Similar →
1949 An Old-Fashioned Girl Emma Davenport Average Similar →
1948 Angels' Alley Daisy Harris Flop Similar →
1947 Jack Armstrong Betty Fairfield Super Hit Similar →
1946 Betty Co-Ed Glenda Warren Hit Similar →
1946 Devil Bat's Daughter Nina Carruthers Flop Similar →
1946 Strangler of the Swamp Maria Hart Average Similar →
1945 Johnny Angel Hatcheck Girl (uncredited) Average Similar →
1944 Youth Runs Wild Blanche (uncredited) Flop Similar →
1944 Mademoiselle Fifi Blondini Average Similar →
1943 Around the World Rosemary Average Similar →
1943 The Falcon and the Co-Eds Student (uncredited) Hit Similar →
1943 The Falcon in Danger Nurse (uncredited) Average Similar →
1943 Prairie Chickens Yola Super Hit Similar →
1943 Swing Your Partner Secretary Super Hit Similar →
1943 Two Weeks to Live Miss LaPlanche, Dr. O'Brien's Nurse Flop Similar →
1942 Fall In Canteen Girl Hit Similar →
1940 Irene Charity Ball Guest (uncredited) Hit Similar →

Rosemary La Planche - Frequently Asked Questions

What is the best movie of Rosemary La Planche?

According to audience ratings, the best movie starring Rosemary La Planche is "Swing Your Partner" with a rating of 10.0/10.

How many movies has Rosemary La Planche acted in?

Rosemary La Planche has been featured in at least 18 major films throughout their career.

What are some other popular movies by Rosemary La Planche?

Other notable films include "Jack Armstrong", "Prairie Chickens", and "Betty Co-Ed".

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