Father John X. Halligan was a protagonist in the 1952 movie When in Rome. A Roman Catholic priest, Halligan went to Rome for the 1950 Holy Year. While en route to Rome, Halligan came across a man named Joe Brewster. Brewster was an escaped convict wanted by American law enforcement. Brewster stole Halligan's clothing and identity, convincing other priests there that he was Fr. Halligan. The Italian authorities soon found the real Fr. Halligan. Convinced of his identity, the Italians assured Fr. Halligan that they would find and arrest Brewster.