Karen says that the nine time Wimbledon champion Martina Navratilova (who won the tournament in 1978, 1979, 1982, 1983, 1984, 1985, 1986, 1987, 1990) wanted to marry her. In the 1985 flashback, she correctly calls her a six time Wimbledon winner, since she won the seventh, eight and ninth title later.
Will references the Zest commercial as one of the things that made him realize he might be gay. The commercial in question featured a man soaping himself in the shower.
The car crash scene is reused stock footage from a movie.