Mictlantecuhtli kindly posted links to three older answers in "When/How did popcorn become so strongly linked to movies and movie theaters?" . The answers were by /u/texpeare , /u/Gadarn , and /u/tunaman808 .

This is not to discourage discussion. More questions, data, and debate are welcome. In this case, the answers were under older standards, and one had a lot of digressions.