Never seems to be a shortage of Internet lawyers. 
Don't need to be a real lawyer to see this one has clear hurdles to overcome from the 1st amendment if they with to obtain any type of conviction.
For starters there is the 3 prong test from the Miller v. Calivornia case on obscene materials.
https://en.wikipedia.org/wiki/Miller_v._CaliforniaHowever, the Court acknowledged "the inherent dangers of undertaking to regulate any form of expression", and said that "State statutes designed to regulate obscene materials must be carefully limited."[16] The Court, in an attempt to set such limits devised a set of three criteria which must be met for a work to be legitimately subject to state regulation:
1. whether the average person, applying contemporary "community standards", would find that the work, taken as a whole, appeals to the prurient interest;
2. whether the work depicts or describes, in an offensive way, sexual conduct or excretory functions, as specifically defined by applicable state law (the syllabus of the case mentions only sexual conduct, but excretory functions are explicitly mentioned on page 25 of the majority opinion); and
3. whether the work, taken as a whole, lacks serious literary, artistic, political, or scientific value.[17]
I read a breakdown of the Texas law they were using and there were specific things in the statute which were not satisfied by anything in the film. Have to find the article again if you are interested.