How many movies have Mammootty and V. B. K. Menon collaborated on?

They have worked on 2 movies together! Their first movie together was Vilkkanundu Swapnangal (1980) while their highest rated movie together was Sindoora Sandhyakku Mounam (1982). They have not worked together since Sindoora Sandhyakku Mounam (1982).