Then this is the film for you.
OK, it is a little stilted but it was done in 1948 so you have to expect that.
It has a star studded cast, some just being themselves - like Gene Kelly and Vera-Ellen, Judy Garland, Lena Horne, Mel Torme, and others acting the stars; Larry - Mickey Rooney, Janet Leigh as Mrs Rogers, Cyd Charisse, June Allyson, Ann Southern, Betty Garrett etc.
You can find it here.
Robyn