How many movies have Eric Sykes and John Le Mesurier acted in together?

They have worked on 4 movies together! Their first movie together was Very Important Person (1961) while their highest rated movie together was Those Magnificent Men in Their Flying Machines or How I Flew from London to Paris in 25 Hours 11 Minutes (1965). They have not worked together since The Liquidator (1965). They are most known for their comedy films together.