That Night with You (1945)

In this musical comedy, a young singer becomes so desperate to appear on Broadway that she goes to a prominent producer and tells him that she is the daughter who resulted from his day-long marriage to a young woman he knew years ago. The producer is delighted and soon puts his daughter up on stage. The trouble begins when the girl's "mother" suddenly pays a call. For her own reasons, the woman decides to play along with the girl's ruse. Fortunately, by the story's end, the truth is revealed, all differences are reconciled and happiness ensues.

Unfortunately the movie That Night with You is not yet available on HBO Max.