my choice of movies was my own criteria, most movies I had no problem with, just very brutal or pron movies I avoid.
however, I keep it to myself, my wife and very close friends, what I watch,
one time I got almost in trouble for stumbling somebody, since then I`m very careful,
First time I heard of the general rule of not watching r-rated movies was from American brothers..its not so strict in Europe I think.
With one exception: I heard of a case, where an elder was removed for allowing his son watching "Lord of the rings"
well, I watched them several times,and have all the dvds, love them...