Excellent film, regardless of the era it was filmed in. Lorre plays a genius who is too depressed by both family circumstances and greater societal realities to try and better himself. To quote A.N. Whitehead (1861 - 1947); "A person is never happy except at the price of some ignorance." The ending is a bit simplistic and "Hollywood", but that doesn't make the film and it's layers of messages any less worth discussing afterwards. Note that Edward Arnold later became president of the SAG, and Mrs. Cambell was a voice/acting coach who later died in Europe of natural causes just as her visa to escape Naziism was approved.