Crossword puzzle clue "time before an important event"

Time before an important event

One with an important role in the production of a fantasy film or period drama (not so important for a porno, though)

___ rally (event before a high school sporting event)

Event before the main event

Event where the number 12 is important, and a feature of 12 two-word answers in this puzzle

Site of two important Civil War battles - or a description of a Pamplona event?

Important event in the spring

Important event: Nov. 4, 1980