After entering December, the battle for the Thanksgiving-Christmas slot became even more fierce. Major companies rapidly released big productions, occupying most of the screens and squeezing the living space of various small independent films. For instance, even after "The Piano Lesson" increased to 500 screens, it just stabilized at that level. It used to dabble at the bottom of the North American box office charts, but now it was completely pushed down.
However, that didn't matter much since "The Piano Lesson" was a long-run release and didn't care too much about such gains and losses. What was really affected was "Philadelphia Story," which was planned to be released before mid-December. Although it was essentially a commercial film, it also carried a bit of artistic flair, which naturally made it less competitive compared to other box office-focused films.