A "B-movie" refers to a low-budget film that is typically produced quickly and with fewer resources than mainstream films. These movies often focus on genre themes like horror, science fiction, or action, and they may feature less-known actors. B-movies are known for their campy style, exaggerated performances, and sometimes unintentional humor. Historically, B-movies were often the second feature shown in a double feature at theaters, hence the name. They gained popularity in the mid-20th century, with notable examples including Plan 9 from Outer Space and Night of the Living Dead. Today, B-movies have a dedicated fan base and are celebrated for their unique charm.