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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Previews, as a film:

TEASERTRAILER: Tantalizing film preview
MPAA: Org. that previews films
TEASER: Brief film preview
TEASER: Film preview
SNEAK: __ preview (early film showing)
SCREENS: Previews, as a film
TRAILERS: Previews that sound like they belong after the film