I may well have created a paradox here - A boardgame based on a movie based on a boardgame. One plus two plus two plus one. Upgrading your car properties to Blackmail envelopes, you have the classic weapons from the traditional murder mystery game as your counters, with lots fo quotes featured from this incredibly funny film that features a host of stars such as Tim Curry, Christopher Lloyd, Lesley Ann Warren, Madeline Kahn, Michael McKean, Michel Mull and Colleen Camp.
One thing's for sure - I definitely did do it!