While there is nothing intrinsically wrong with artificial depictions of sex and violence, permitting a child to read, see, or hear them, particularly when delivered in extremely graphic detail, is nothing short of criminal negligence. That which an adult can discern and accept as "mere entertainment," a child sees as reality and a role model.
Thus, the problem is not so much Hollywood's presentation of Reservoir Dogs or Deep Throat, as it is the criminally negligent behavior of the parent who permits the child to see either one. Let us not excoriate an entire industry, rather than place the blame on bad parenting, where it belongs.
The worst part of Hollywood's behavior is not the production of violent and sexually explicit movies, but rather the hypocrisy of presenting movies like Death Wish and True Grit while, at the same time, militating as an entire industry for so-called "gun control" (that is, elimination and confiscation).