Which 1951 film ends with the line "I have always depended on the kindness of strangers"?

The 1951 film about German general Erwin Rommel, starring James Mason, is titled with his nickname. What is it? In 1951, Fredric March starred as a worn-out traveling salesman in the film version of which Arthur Miller play? Which 1951 film starred Gregory Peck and Susan Hayward? Which 1951 Hank Williams classic asks "What ya got cookin'?" in its chorus? James Arness played the alien title creature in which 1951 science-fiction film? Which 1951 science-fiction film features the famous phrase "Klaatu barada nikto"? In which 1951 film does a missionary's sister tell her boat captain, "Nature, Mr. Allnut, is what we are put in this wo… Gene Kelly plays an ex-GI painter on Paris's Left Bank in which 1951 Best Picture winner?