Sneak previews are a marketing strategy used by the studio to help generate buzz for the movie one week before a movie opens. The studio will select a number of theaters across the country and allow the general public to see this movie before it officially opens. Unlike movie screenings, attending a sneak preview movie will cost the same as a normal movie ticket. However, you will have the opportunity to see it before the nationwide release. Information about sneak previews can typically be found in your local newspaper or through TV advertisements.