Premise: Peter Chelsom (born 20 April 1956) is a British film director, writer, and actor. He has directed such films as "Hector and the Search for Happiness", "Serendipity", and "Shall We Dance?" Peter Chelsom is a member of the British Academy, the American Academy, The Directors Guild Of America, and The Writers Guild Of America.
Hypothesis: Peter Chelsom must have directed more than one movie after the year 1980.