You're a Sweetheart(1937)

A Broadway producer is in a quandary when he discovers that the opening of his newest big production coincides with that of a major charity event. He despairs that the show will close after opening night until an ingenious writer suggests that he simply give the production snob-appeal by making the tickets nearly impossible to get by fabricating a story that they were all purchased by a flamboyant Texas oil baron who is totally besotted by the show's star.