Leave It to Blondie is a 1945 American comedy film directed by Abby Berlin and starring Penny Singleton, Arthur Lake and Larry Simms. It was fifteenth of the twenty-eight in the series of Blondie films released by Columbia Pictures.
The Bumsteads have $100 left over from their budget and decide to donate it to charity. Unfortunately, they both unknowingly donate the money, leaving them $100 short.
Alvin decides to help them out by submitting a song written by a relative of Bumstead's to a songwriting contest. Mr. Dithers gets involved when it comes out that the whole thing can help him get a real estate deal.
Meanwhile, Blondie worries about a fortune she overheard involving Dagwood getting involved with some brunette. Dagwood's song is a finalist, and he has to train to sing it on the radio. The woman helping him is a brunette.