plummer had the main role in "oedipus the king" (1968) and "the high commissioner" (1968). he was later in "battle of britain" (1969) and "lock up your daughters" (1969). that same year, he played inca emperor atahualpa in "the royal hunt of the sun". plummer played the duke of wellington in "waterloo" (1970) with rod steiger as napoleon bonaparte. he played rudyard kipling in "the man who would be king" (1975). he was also in the comedy "the return of the pink panther" (1975), with peter sellers and "the silent partner" (1978). he was in "aces high" (1976), "starcrash" (1978), and "international velvet" (1978). he played sherlock holmes in "murder by decree" (1979).