Answer based on context:

Peck also received Oscar nominations for his roles in The Keys of the Kingdom (film) (1944), The Yearling (film) (1946), Gentlemans Agreement (1947) and Twelve OClock High (1949).  Other notable films in which he appeared include Spellbound (1945 film) (1945), The Gunfighter (1950), Roman Holiday (1953), Moby Dick (1956 film) (1956, and its Moby Dick (1998 miniseries)), The Big Country (1958), The Bravados (1958), Pork Chop Hill (1959), The Guns of Navarone (film) (1961), Cape Fear (1962 film) (1962, and its Cape Fear (1991 film)), How the West Was Won (film) (1962), The Omen (1976) and The Boys from Brazil (film) (1978).

How many years after being nominated for The Gunfighter was Peck than nominated for Roman Holiday?
3