With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Breakfast Club is a film.
text_B: Undertow is a 1949 American film noir crime film directed by William Castle starring Scott Brady , John Russell , Dorothy Hart and Peggy Dow .. William Castle. William Castle. Scott Brady. Scott Brady. John Russell. John Russell ( actor ). Dorothy Hart. Dorothy Hart. Peggy Dow. Peggy Dow. film noir. film noir. crime film. crime film. It is the story of an ex-con , a former Chicago mobster , who is accused of the murder of a high-ranking Chicago boss .. Chicago. Chicago. The movie marks the second film to feature a young actor named Rock Hudson and the first in which he received a film credit for his work .. Rock Hudson. Rock Hudson
not_related.