Man Bites Dog
Bad Boy Bubby
These two are quite challenging.
Man bites Dog I watched at the Edinburgh Film House when it came out, not watched since but should watch again to see if it's as shocking.
Bad boy Bubby was ace if a bit disturbing. Watched it with absolutely no idea what the synopsis was. Wife got from blockbuster in a rent three for the price of two deal. She couldn't choose the third so grabbed Bubby.
From IMDB one of many great quotes
"Angel's Mother: If God had wanted us to be fat, he'd just made us all the same way, wouldn't he? But he didn't! God doesn't like fat people! Fat people are an abomination in his eyes!"