Shree 420 (1955)

A graduate walks from Allahabad to Bombay with a degree in honesty, finds it worth nothing, and becomes a card-sharp for the rich instead. Raj Kapoor directed and starred, with Nargis and Nadira; Shankar-Jaikishan's "Mera Joota Hai Japani" and "Pyar Hua Ikrar Hua" came from it, and the first of those became an unofficial anthem heard far beyond India. The title is the Indian Penal Code section for cheating.