1946年剧情片电影《碧云天》讲述Jed Potter looks back on a love triangle conducted over the course of years and between musical numbers. Dancer Jed loves showgirl Mary, who loves compulsive nightclub-opener Johnny, who can't stay committed to anything in life for very long.由平·克劳斯贝,弗雷德·阿斯泰尔,琼·考尔菲尔德,Billy,De,Wolfe等主演。