Corrected entry: Towards the end of the movie when Andy and Trish have decided to wait 20 dates to have sex, You see the calendar on his fridge showing the dates they've had. The calendar is very strange in that it only has 6 days in each week, and thus has 6 weeks in that month. There are numbers on every day of the calendar, so its not that the calendar combine weekends into one box or anything.
Bjoern_Buller
8th Jan 2006
Correction: The calendar is a customized, self-printed calendar (could be done with Excel) which only purpose is to track the dates. The real weeks, weekdays and weekends are not important for this.
Bjoern_Buller