@edgarblythe,
Yes, agreed. The funny lines and the setups in the movie were more natual and an organic part of the comedy than in TV shows. However, some of the lines in his show were classic:
Groucho was the subject of an
urban legend, about a supposed response to a contestant who had nine children which supposedly brought down the house.
In response to Marx asking in disbelief why she had so many children, the contestant replied, "I love my husband."
To this, Marx responded, "I love my cigar, too, but I take it out of my mouth once in a while."
Groucho often asserted in interviews that this exchange never took place, but it remains one of the most often quoted "Groucho-isms" nonetheless.
Until 5 mins ago, I really thought this was his real-life quote.