Blow Your Own Horn (1923)

"The gripping, thrilling, heart throbbing story of a couple of overseas boys who followed a millionaire's advice as to how to "make good." It isn't what it's cracked up to be- and it involves a smashing story of radio and love."

IMDb

Comedy

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World War I veteran Jack Dunbar who, like a lot of veterans then and now, is finding it hard to land a job. When he fixes the broken down auto of the newly rich Nicholas Small, he finally runs into some luck. The blustery Small explains that the way to get ahead is to blow your own horn, and then he takes Dunbar to an estate, where he is introduced as a millionaire.