The Wizard of Oz (1939)
One of the most shocking features to be considered a “flop” is The Wizard of Oz, but when it made its debut, MGM was disappointed to find that the now-classic was far less of a hit than expected, costing the studio $1.1 million in losses. Today, that would be the same as about $15 million. However, when the film was re-released ten years later in 1949, it earned tremendous recognition. The film became an instant sensation when it was aired on television in 1956.