Yep, Show Boat without question is a great musical. Deanna had some fine musicals, and Donald O'Connor and Peggy Ryan did their part for the B-unit. Except for those misguided dream ballets in Flower Drum Song (the serious one for "Love, Look Away" and the comic one for "Sunday"), I think the film improves on the stage version of Flower Drum Song with the placement and assignment of songs and the casting.