When talking pictures arrived in the late 1920s, songs from movies became big business. Al Jolson, who starred in The Jazz Singer, the first blockbuster talkie, sold millions of 78 RPM records. Fifteen years later, Irving Berlin sat next to a swimming pool in Hollywood and wrote White Christmas for the film Holiday Inn. The Bing Crosby version, released on July 30, 1942, is still the biggest-selling single of all time with lifetime sales somewhere in excess of $50 million.