The latest installment of "Scream 7" has an important safety lesson, showing firearms stored in a safe. In the US, almost half of all gun owners don't store their guns securely, according to analysis from Brady. The study suggests that even a 20% increase in households practicing safer storage could prevent up to a third of annual youth gun deaths from suicide and unintentional shootings. Hollywood has previously used this power to promote gun safety on TV shows like "Cheers" and "Family Ties," which helped reduce drunken driving and motor vehicle deaths.