The Man Who Knew Too Much ratings (Movie, 1934)

While holidaying in Switzerland, Lawrence and his wife Jill are asked by a dying friend, Louis Bernard, to get information hidden in his room to the British Consulate. They get the information, but when they deny having it, their daughter Betty is kidnapped. It turns out that Louis was a Foreign Office spy and the information has to do with the assassination of a foreign dignitary. Having managed to trace his daughter's kidnappers back to London, Lawrence learns that the assassination will take place during a concert at the Albert Hall. It is left to Jill, however, to stop the assassination.

The 39 Steps
Total votes: 63,305
Average rating: 7.6 Sabotage
Total votes: 19,491
Average rating: 7.0 Secret Agent
Total votes: 9,293
Average rating: 6.4 Number 17
Total votes: 5,664
Average rating: 5.7 Charlie Chan at the Opera
Total votes: 2,325
Average rating: 7.1 The Black Camel
Total votes: 1,706
Average rating: 6.6 Night Key
Total votes: 1,153
Average rating: 6.3 The Phantom of Crestwood
Total votes: 866
Average rating: 6.5 A Man's Head
Total votes: 721
Average rating: 7.1 Mary
Total votes: 1,049
Average rating: 5.7