The Lavender Hill Mob (1951)
Thirty-seven years before he made the finest plotted comedy of all time with A Fish Called Wanda, director Charles Crichton made this classic, the enduring gem from the superb tradition of Ealing comedies.
Sir Alec Guinness stars as Henry Holland (obviously nicknamed 'Dutch'), a bank clerk handling gold bullion -- and one who seems to have seen the gleamy light. An elaborate plan is hatched, involving foundries, lying, and miniature Eiffel Towers.
Madcap yet fascinating, this is sheer genius.