Philistine? No. But your tastes appear to suggest "Troglodyte". That's not intended as a value judgement, but to identify their nature.
1) My bet is, you're young. Most people raised after MTV have a hard time with the pacing of pre-1980 movies. To match that, most people sufficiently pre-MTV often have an equally hard time with post-1980 movies. This isn't entirely unreasonable, but it does suggest that the "other half" is, unfortunately, missing out on a lot of good films from the other side of the divide. It pays to cultivate the patience to watch slower pre-1980 movies, as well as the attentiveness required to watch post-1980 movies. TV is much the same. Pacing of TV shows from 1990 onwards is considerably faster, and can have a negative affect on anyone used to that who is watching an older show.
2) One thing to realize about the film is that it is exceptionally loosely based on a real character, namely, "Fatty Arbuckle". Not that Arbuckle ever did early pornos or anything, but the character, as described, does match that of Arbuckle in terms of his being a "Wonderboy" director who, after a major scandal, found himself substantially unemployable. All the evidence suggests that Arbuckle, by any reasonable standard, was innocent of any significant wrongdoing. This is a different era from now, when scum Roman Polanski is openly fetted and defended by almost every two-bit Hollywood shill, despite the fact that he quite blatantly raped a 13yo girl...
3) The acting performances are first rate. It is Dreyfuss in one of his best roles, Bob Hoskins before he was well known, as well as a couple other notable people.