Variety reported this week that Martin Scorsese and John Carney are at work on Fascinating Rhythm, a musical-fantasy movie based on the works of iconic American composer George Gershwin. Gershwin (1898-1937) is renowned for many early twentieth-century standards like “Summertime,” “Swanee,” “I Got Rhythm,” “Oh, Lady Be Good,” and “Embraceable You.” His stage productions included…