During a recent movie scheduled to start at 10pm, there were so many previews that the movie didn't start until past 10:20.
While previews are a long-standing tradition and enjoyable in moderation, a consumer with a paid ticket should not be forced to spend an unreasonable amount of time sitting through advertisements for upcoming releases.
To protect and respect the consumer's time and the integrity of the movie theater experience, please limit the allowed number of previews to 3.