He moved to Paris to study with Nadia Boulanger, where he began to compose An American in Paris. After returning to New York City, he wrote Porgy and Bess with Ira and the author DuBose Heyward. Initially a commercial failure, Porgy and Bess is now considered one of the most important American operas of the twentieth century. Gershwin moved to Hollywood and composed numerous film scores until his death in 1937 from a brain tumor. Gershwin's compositions have been adapted for use in many films and for television, and several became jazz standards recorded in many variations.
Wikipedia Bio at amazon.com: