"Worst films" refer to movies that are widely criticized for their poor quality, whether due to bad acting, weak scripts, or low production values. These films often fail to connect with audiences and can become infamous for their shortcomings. Examples include The Room, directed by Tommy Wiseau, which has gained a cult following despite its flaws. Critics and audiences alike may label a film as the "worst" based on various factors, including lack of coherence, unconvincing performances, or unrealistic plots. Some films, like Battlefield Earth, have been noted for their negative reception and are often discussed in lists of the least successful movies in cinema history.