Tear Gas Squad (1940)
This is a very fun movie about Irish-American police officers. Dennis Morgan plays Tommy McCabe an arrogant nightclub singer who has a low opinion of the police force and is always making fun of them. An act of his is a song making fun of the police called "I'm an Officer of the Law." He meets Jerry Sullivan (Gloria Dickson) at the nightclub (and acts like a jerk), she dislikes him, but he wants her to go on a date with him, so she invites him to her home for dinner. When he arrives at her home much to his chagrin he discoverers that her Father and cousins are on the police force, and they don't think much of him from what Jerry has told them. Jerry asks Tommy to sing "I'm an Officer of the Law" knowing her family won't like it. Much to her annoyance he instead sings "When Irish Eyes are Smiling" and wins them over. Her family asks him to sing another song, and he sings "You, You Darlin;'" and Jerry starts to sof...