In which film did Charlie Chaplin showcase his improvisational storytelling techniques?

Charlie Chaplin is renowned for his improvisational style and ability to blend humor with poignant storytelling. In "The Immigrant" (1917), Chaplin effectively uses improvisation to craft a narrative that resonates emotionally while delivering comedic moments. The film tells the story of a poor immigrant's struggles as he arrives in America and encounters various challenges.

Chaplin's performance highlights his talent for physical comedy and his knack for creating relatable characters. Scenes like the famous bread-eating segment, where he cleverly balances humor with a critique of the harsh realities faced by immigrants, exemplify his unique ability to weave together improvised bits that enhance the storytelling without detracting from the overall message. This film showcases how he could adapt his performances to the nuances of his character and the situation, making it a prime example of his improvisational storytelling techniques.

The other films listed, while significant in their own rights, do not prominently feature the same level of improvisational storytelling that defines "The Immigrant." Each of those works has its own unique aspects, but "The Immigrant" stands out as a hallmark of Chaplin's creative storytelling abilities.