The Loudspeaker

The Loudspeaker is a 1934 American comedy film directed by Joseph Santley.
The film is also known as The Radio Star in the United Kingdom.
Plot summary.
Wisecracking Joe Miller (Ray Walker) makes it to the big time in radio.
When he gives his girlfriend Janet (Julie Bishop) her big break, she becomes an even bigger star. He feels like the joke's on him, when she starts going out with his friend George (Lorin Raker); and, he turns to booze, for comfort.
Whether Joe can crawl back up, out of the bottle; or, if Janet, or the sponsors and audience will take him back, remains to be seen.