She began her acting career very young , and appeared in films like David Lean 's Great Expectations ( 1946 ) and Laurence Olivier 's Hamlet ( 1948 ) while still a teenager .
Prior to moving to Hollywood , she played the young Estella in David Lean 's version of Great Expectations ( 1946 ) and Ophelia in Laurence Olivier 's Hamlet ( 1948 ) , for which she received her first Oscar nomination . It was the experience of working on Great Expectations that caused her to pursue an acting career more seriously :