Judd Apatow interviews Paul Rudd in Interview magazine:
Apatow: Did having Michelle Pfeiffer as your leading lady create any problems with your wife?
Rudd: It didn’t at all. In fact, the very first day, I had this scene where I was supposed to be making out with Michelle Pfieffer. I told my wife, “Look. I want you to know that I am going to be making out with Michelle Pfeiffer today, and I will be thinking about… Michelle Pfeiffer.” My wife’s response was that when she makes out with me she also thinks about Michelle Pfeiffer.
(Source)