No.14814
It pretty much always makes a movie more realistic. Sex is a part of life, it's something everyone on the planet can relate to. Kind of like other experiences everyone has had, like your first kiss, going to prom, scoring a touchdown, going to parties, marrying the love of your life, buying a house, having a kid and cracking a beer open with your friend. You wouldn't complain about one of these incredibly common experiences being depicted in a film, so why sex? It's a part of life, and if you take it away from life it's not even worth having.
No.14819
Irreversible (2002)