20 Things You Didn't Know About It's A Wonderful Life
19. Product Placement
Gower’s drug store was filled with 1940s product placement and it is particularly noticeable when young Violet and Mary are present, with many brand names visibly in the background. This includes Coca-Cola, Vaseline, Bayer aspirin and Pepto-Bismol.
The one which actually works as a plot device is the Sweet Caporal – a popular cigarette brand of the early 20th century. Its ad slogan “Ask dad, he knows” inspires George to run to his father when Mr. Gower orders him to deliver capsules that are accidentally filled with poison.