@hwinkler4real Some excellent choices. A few I haven't seen anyone mention:
Charade
The Good, The Bad and the Ugly
Seven Samurai
The Magnificent Seven
It's a Mad Mad Mad Mad World
@VigilantFox Nicotine is a poison, used in insecticides and rodenticides (or used to be, maybe not anymore).
Was also the poison of choice in several Agatha Christie novels, and she knew her shit.
@tanpukunokami Yes. As you might guess, mainly in the Rocky Mountain area.
In the prairie states you can find prairie oysters, which are the same thing.