6. Charlie Chan At The Opera (1936)
Chan again, but this time with Warner Oland, who finds himself backstage at an opera at the request of its prima donna, Lilli Rochelle, who's been receiving death threats from a mysterious figure. Meanwhile, Boris Karloff's escaped lunatic looms in the shadows, burning with murderous intent...
Wonderful direction, a stellar supporting cast and a sparkling script meant that this entry in the Charlie Chan series would never be bettered. The addition of Karloff has ensured that it remains the most frequently rediscovered, and loved, of the Chan series.
Mr. Arnold: "My name's Arnold. I'm the stage manager here, and this opera is going on tonight even if Frankenstein walks in"