The Marx Brothers' 1933 comedy classic "Duck Soup" is known for its revolutionary scenes.

One such scene is where Harpo Marx pantomimes Groucho Marx through a mirror. It's also notable for one-liners like Groucho's "I could dance with you until the cows come home. On second thought, I'd rather dance with the cows 'til you come home" in reference to actress Margaret Dumont. The movie is renowned as one of Hollywood's first satire movies on the subject of war.

The release of "Duck Soup," in 1933, was met with much criticism and little success.

It wasn't until the 1960s that the film began to be seen as a great piece of satirical comedy. "Duck Soup" was the final film to feature all of the Marx brothers: Groucho, Harpo, Chico and Zeppo. Zeppo, who always played the straight man, left and made the Marx Brothers a trio.  

The movie is filled with zany moments involving musical numbers, hilarious gags and comedy bits. Viewers must be on their heels to catch some of the movies funniest lines and moments. The movie's most controversial line might well be its most profound, "You're a brave man. Go break through the lines. And remember, while you're out their risking your life and limb through shot and shell, we'll be in here thinking what a sucker you are."

"Duck Soup" is truly a comedic classic, and unlike many other comedic classics, it serves an important purpose.