Will Hay was very big in the UK in 1937, and Oh, Mr. Porter! is a good example why. Instead of his usual schoolmaster roles, here he plays a stationmaster in Northern Ireland on the border with Ireland. He renovates the station, then gets involved with gunrunners posing as ghosts.
The British Film Institute included this movie in its 360 Classic Feature Films list. TV Cream, a British nostalgia web site, listed it at number 41 of cinema’s Top 100 Films. Leonard Maltin gave it 3½ stars, which is one reason why it’s 33 in the Internet Archive Top 100.