This was an odd cartoon, for several reasons. It was in the middle of this DVD collection I bought of 1930s cartoons and this was made in 1965. It also is French. It also is more of a science-fiction story out of the 1950s, or even a horror story, much more than a comedy which one normally associations with cartoons. An "animated short" is a better description of this strange story.
That story is about a farmer who is trying to grow lettuce. He has no luck until he discovers one day that his tears make the salad grow. He brings an onion with him and then hits himself our the head - whatever it takes to make him cry and produce these big heads of lettuce. The bad news is that snails invade these big vegetables and the snails turn out to be giants. They invade the nearby city and capture the humans, kids and adults. If this were a '50s film, you just know it would be called "Attack Of The Giant (or Killer) Snails!"
These escargots (snails) even demolish the city's buildings! What happens after that is even more bizarre, but funny.
I found the artwork strange, too: excellent in spots and primitive in others. Although I found it all interesting, I wasn't quite sure what to think as far as entertainment value. It's more of a curiosity piece. However, if the pace wasn't so slow, this could have been really good because the premise was good.