 He spends the evening at a nearby beach, and when his father picks him up, Hal tries to tell him that life and love "shouldn't be rocket science", although he is unable to say the phrase "rocket science" due to his stutter.Blitz and the film's producers considered having celebrity cameos in Hal's parents' roles, though he decided that cameos would draw away from the film as the celebrities would not be "onscreen long enough for them to become someone other than the celebrity".In between shooting the film and its release, Hill became a well-known celebrity with the films "Knocked Up" and "Superbad"; Blitz describes being "bummed about that" because of his reluctance to feature celebrities.