This is the golden era of one line gags and puerile slapstick comedy. This has to be watched with unsophisticated receptivity. If it is there are rich rewards. Watch this with a grandchild.
This is the first Marx Brothers comedy I have seen and I was expecting something else from it, as it is, with everyone constantly trying to be the zany one, it is exhausting and unfunny.
When comic acts from vaudeville got to make Hollywood films they were usually stiffed with B directors and budgets. The Marx Brothers fared better than most and here rated multiple Oscar winner Leo McCarey. Harpo, Groucho and Chico (and Zeppo in his last film) worked their act for years, and finessed their strong visual image and contrasting comic styles.
There's Groucho's fast talking wordplay, Chico's garbled malapropisms, and Harpo's destructive, primal mime. Groucho takes over the corrupt oligarchy of Freedonia which is slipping into war with neighbours Sylvania for whom Harpo and Chico are operating as spies. With populist governments emerging in 1930s Europe, this was satire.
But it's mainly an opportunity for the trio to unleash their trademark anarchy. There's a great visual joke with Groucho playing both sides of a mirror. Margaret Dupont again scores as their uncomprehending stooge. Marx Brothers films are best when Groucho is reeling off sardonic, convoluted, rapid-fire gags and not so much for the musical interludes of the other two.
Which makes this their best film, dense with immaculate Grouchoisms. It's the pick of their early Paramount films and it bombed at the box office, badly. The remaining three brothers left for MGM thinking that they were finished. But Duck Soup has become an influential comedy (there's plenty of Monty Python here) and is now rated their masterpiece.