Answer
Six films marked the fruitful collaboration between Alec Guinness and David Lean. Their partnership began with "Great Expectations" (1946) and continued with "Oliver Twist" (1948), "The Bridge on the River Kwai" (1957), "Lawrence of Arabia" (1962), "Doctor Zhivago" (1965), and "Ryan's Daughter" (1970). Guinness's versatility and Lean's meticulous direction resulted in memorable performances and critically acclaimed films.