Ron Howard, the director of the acclaimed film 'A Beautiful Mind,' had strict rules regarding visitors on set, particularly concerning John Nash, the mathematician whose life inspired the film. Howard revealed that he preferred Nash not to visit, fearing it might compel Russell Crowe, who played Nash, to imitate him rather than develop his own interpretation. Despite Howard's wishes, Nash appeared on set during filming in Princeton, where many scenes were shot in locations significant to Nash's life. Crowe, initially hesitant, decided to embrace the unexpected encounter, acknowledging the importance of meeting Nash. The film focuses on Nash's struggles with mental illness and his eventual triumph over adversity. In a lighter note, Crowe, now 61, has ventured into social media with a TikTok account named 'igp366,' which showcases his passion for luxury watches and his band, Indoor Garden Party. His account has attracted a considerable following, where he shares insights into his watch collection.