In either usage, most B movies represent a particular genre—the Western was a Golden Age B movie staple, while low-budget science-fiction and horror films became more popular in the 1950s. Early B movies were often part of series in which the star repeatedly played the same character. Almost always shorter than the top-billed feature films, many had running times of 70 minutes or less. The term connoted a general perception that B movies were inferior to the more lavishly budgeted headliners; individual B films were often ignored by critics.