Humans are capable of screaming as loud as 120 decibels, whereas a car alarm is around 75 decibels, and a typical conversation around 45, UK cinema chain VUE Entertainment tells us today. So, in anticipation of the “hordes” of screaming fans expected at theaters this weekend for One Direction: This Is Us 3D, VUE has ordered 20,000 pairs of earplugs to be handed out to folks accompanying the kids. VUE says the free earplugs will be distributed at each of its 82 theaters to “ensure that accompanying chaperones can enjoy the film without being worried by the high-levels of expected screaming and shouting in the auditoriums.” Morgan Spurlock directed the PG-rated documentary that follows the boy band on its recent Take Me Home Tour. The teen idols were discovered on Simon Cowell’s UK The X Factor in 2010. Since then, they’ve sold over 29 million records. Sony Pictures Releasing began rolling out the film internationally this week. It opens tomorrow in the U.S. via TriStar Pictures.