Throughly Modern Millie - A 1967 Musical Movie directed by George Hill - Starring Julie Andrews, Mary Tyler Moore and Carol Channing

Available on Internet Archives 

The screenplay, by Richard Morris, is based on the 1956 British musical Chrysanthemum.

Millie Dillmount (Julie Andrews) is a young woman from Kansas who arrives in New York City in 1922 with dreams of becoming a modern flapper and marrying a wealthy man. She gets a job as a stenographer at Sincere & Company, where she sets her sights on her boss, Trevor Graydon (John Gavin). However, Millie's plans are complicated by a number of factors, including her roommate Dorothy Brown (Mary Tyler Moore), who is also in love with Trevor; her landlady, Mrs. Meers (Beatrice Lillie), who is secretly running a white slavery ring; and Jimmy Smith (James Fox), a poor paperclip salesman who falls in love with Millie.

The film was a critical and commercial success, and won six Academy Awards, including Best Original Score and Best Costume Design.