Instruction:
What are the top 5 comedic movies of all time

Response:
The debate for the best comedies is subjective and open to debate.  What is considered humorous can vary by region and evolves over time.  With that said, here are 5 popular comedies:
 - Dumb and Dumber
 - Anchorman
 - Monty Python and the Holy Grail
 - Airplane!
 - Planes, Trains and Automobiles