His Private Secretary (1933)

This has quite a fun premiss to it. "Dick" (John Wayne) is a bit of a philanderer, the handsome but wastrel son of wealthy "Mr. Wallace" (Reginald Barlow). Uncharacteristically, the flighty young man alights on the respectable "Marion" (Evalyn Knapp), the grand-daughter of a small town preacher he meets at a petrol station and a whirlwind romance ensues. "Dad" is having none of this, and so it falls to the young girl to convince him she is not just after the family's money. On a visit to his building to demonstrate that his assumptions are wrong, she barges into his office. He likes her forthrightness and hires her as his secretary where she gradually makes herself indispensable ("Wallace" still has no idea she is his son's new wife!) What's going to happen when he finds out...? The production is basic, as is the writing, but it's still quite a tightly cut, light-hearted, little story with just about enough charm to keep it going for an hour.