What is the fine-grained topic of the following text: and one of my favorites from Midnight Cowboy, where an actual taxi nearly ran over Dustin Hoffman and he reacted by uttering the famous line “I’m walkin here!” the ultimate Sanford Meisner moment where an actual reaction was caught on film and became one of the most memorable lines in movie history. Only return the topic.
Dustin Hoffman's famous line in Midnight Cowboy