Los Angeles, Oct. 14 -- The first weekend was no fluke: "Joker" is a hit.

The R-rated comic book villain origin story had a phenomenal second weekend at the box office, topping the charts once more over newcomers such as the animated "The Addams Family" and the Will Smith action pic "Gemini Man."

Warner Bros. said Sunday that "Joker" added an estimated $55 million from North American theaters this weekend, bringing its domestic total to $192.7 million.

Not only are the pure grosses impressive, but "Joker" also dropped only 43% from its record-breaking debut.

For comic book films, which are often front-loaded and regularly see second weekend falls that are over 50%, it's a notably small dip. It's also a slightly lower drop than "Wonder...