The TV show got its own movie, and it not only opened in theaters, it's still slaying in theaters. Downton Abbey made five times its $20 million production budget after about a week and it can't stop won't stop making more money.
It's clearly still doing well in its own lane, with not much direct demo competition from the other movies out there.
For all the “controversy” about Joker, the movie has tons of supporters. Even perpetual curmudgeon Michael Moore decided to post a stirring defense of the movie. And Joker may not be a typical comic book movie, but it is about a famous comic book character. Downton Abbey, on the other hand, entered theaters like a hobo at the queen's royal reception. What is THAT television show doing in theaters?
Downton Abbey wasn't expected to beat Rambo: Last Blood or Brad Pitt's Ad Astra space movie in its opening weekend, but it handily defeated both, even though it played on fewer screens. It also gave Focus Features its best opening of all-time.
Rambo V took a little shot at Downton Abbey in defense of its own movie, seeming to argue that Rambo‘s haters were just wimpy tea-loving Downton fans. Saturday Night Live also took a shot at Downton in defense of Joker, arguing that Downton was boring and low-stakes, and Joker may not be perfect but at “at least stuff happens.”