This is the 380th most frequent Japanese word.
派
"派" (ha) means "faction," "group," or "school."
Here, '派' (ha) is used to describe a person's preference or inclination, indicating that she is the type who favors sports.
彼女はスポーツ派なので、休日は運動しています。
She is a sports enthusiast, so she exercises on her days off.
In this case, '派' (ha) signifies a group or faction, specifically the fans associated with the movie.
その映画のファン派はストーリーの続きに興味津々です。
Fans of that movie are very curious about the continuation of the story.
Here, '派' (ha) denotes an ideological faction or group, pointing towards their stance or support for reforms.