sneak preview noun
plural ∼ -views [count] : a special showing of something (such as a movie, play, or product) before it becomes available to the general public
▪ A few prominent writers were invited to a sneak preview of the new film/play. ▪ a sneak preview of this fall's fashions
▪ A few prominent writers were invited to a sneak preview of the new film/play. ▪ a sneak preview of this fall's fashions
