My late brother was a deacon in his church and they had a rule on not watching any movies rated 'R' or worse. This is a common and mostly sensible rule in the more observant churches. However, there are these movies that have this rating for reasons other than sexual situations.
When Mel Gibson's 2004 movie, "The Passion of the Christ" came out, I pointed out to him that he should discuss this rule within his church as it would hardly bring any disrepute for a congregant to see a deacon going to see that 'R' rated movie.
My further comment was that with Hollyweird being the ones to rate their own products and with their LEFT biases, these rules need to be discussed on an individual basis rather than being absolutes. We did go with family to see that one and select others in the years before his passing.
My rule for our family is we don’t see rated R movies unless there is a significant historical or cultural reason to do so. The examples I use are Schindler’s List and The Passion of the Christ.