Best movies that are oscar winners in music (score of a musical picture--original or adaptation) category

Actors : Mark Lester, Shani Wallis, Ron Moody, Oliver Reed,
Directors : Carol Reed,

Young Oliver Twist runs away from an orphanage and meets a group of boys trained to be pickpockets by an elderly mentor.

Actors : Michael Crawford, Barbra Streisand, Marianne McAndrew, Walter Matthau,
Directors : Gene Kelly,

Matchmaker Dolly Levi travels to Yonkers to find a partner for "half-a-millionaire" Horace Vandergelder, convincing his niece, his niece's intended, and his two clerks to travel to New York City along the way.