In the realm of cinema, box office success does not always equate to artistic value, as evidenced by ten films that initially flopped but later gained recognition as masterpieces. 'The Nice Guys' (2016), despite grossing only $71 million against a $50 million budget, became a cult favorite for its humor and performances by Ryan Gosling and Russell Crowe. Similarly, 'Speed Racer' (2008) grossed $93 million on a $120 million budget, showcasing groundbreaking visual techniques that have influenced modern filmmaking. 'The Iron Giant' (1999) struggled at the box office with $23 million on a $70 million budget but is now celebrated for its emotional depth and social commentary. Other notable films include 'Fight Club' (1999), which grossed $100 million, and 'Citizen Kane' (1941), initially dismissed but now regarded as a cinematic landmark. These films exemplify how initial audience reception can overlook profound artistic contributions, only to be rediscovered and appreciated over time.