National Lampoon's Gold Diggers (also known as National Lampoon's Lady Killers) is a 2003 film directed by Gary Preisler. It features two friends, played by Will Friedle and Chris Owen, who marry two old ladies, played by Louise Lasser and Renée Taylor, so they can inherit their fortunes when they die. Wikipedia
Calvin Menhoffer: We have to kill them. Pickle?
Leonard Smallwood: You mean... murder?
Calvin Menhoffer: Murder is such an ugly word. Try to think of it more like... more like self defense.