What movie had the very first swear word?

Gone with the Wind (1939) was the first official movie that someone swore in. The very last line in the movie "Frankly my dear, I don't give a dahm."

The very first movie to ever swear was The Big Trail (1930) starring John Wayne. It wasn't as popular as Gone with the Wind hense forth no one really knew about it. "They always told me Women were dahm funny."