Johann Sebastian Bach, born in 1685, never finished his experimental work The Art of Fugue , which will be performed at the Grand Hall, at the University of Hong Kong, on Saturday. In 1750, with his vision declining, the German composer was operated on by travelling British eye surgeon John Taylor - Bach died a few months later; the same doctor left composer George Handel partially blind. Bach's Toccata and Fugue in D Minor was used in the 1940 Walt Disney film Fantasia , which consists of eight animated segments set to pieces of classical music conducted by Leopold Stokowski … Born in London in 1882, to parents of Polish and Irish descent, Stokowski had a shock of white hair, a faux Eastern European accent and never used a baton: his flamboyant freehand style became his trademark. At the age of 94, he signed a contract with Columbia Records which would have kept him working until he turned 100, if he hadn't died a year later. In 1949, a Warner Bros' Looney Tunes cartoon spoof of Stokowski had Bugs Bunny playing the conductor. The short, called Long-Haired Hare , was directed by Chuck Jones … The man who directed cartoon legends including Daffy Duck, Road Runner and Porky Pig was once described by comedian and actor Robin Williams - a self-confessed "Jones-aholic" - as "the Orson Welles of cartoons". Aged 85, Jones signed a contract with Warner Bros to supervise its animation department. He said of the deal, "At 85, you can only think ahead for the next 50 years or so." In 1944, Jones directed the animated short Hell-Bent for Election , a campaign film for Franklin Delano Roosevelt … The New York-born former president wasn't only related to Theodore Roosevelt, who entered the White House in 1901 (they were fifth cousins), he was also related by blood to his own wife: Eleanor was Teddy's late brother's daughter; her uncle walked her down the aisle. FDR's pet dog, Fala, who outlived him by seven years, sits beside him in a statue at Washington's Franklin Delano Roosevelt Memorial - he is the only presidential pet so honoured. In 2012, Roosevelt was the subject of the film Hyde Park on Hudson , directed by Roger Michell … The son of a diplomat, South African-born Michell grew up in Beirut, Damascus and Prague, before becoming an assistant director to legendary playwright Samuel Beckett. Last year, Michell told the BBC his father's career had been the inspiration for his own: "I became a director because my father was a diplomat, and I think my interest came from watching my parents perform at close quarters, watching them have to be other people." In 2006, Michell directed comedy flick Venus , starring Peter O'Toole … Born in 1932, the British-Irish actor attended a Catholic school where the nuns beat him to "correct" his left-handedness. A noted drinker, O'Toole once lost the top of a finger in a boating accident, and claimed to have dunked it in brandy before sticking it back in place. When the bandages came off, he discovered he'd put it on back to front. One of his lesser known roles was in the 2007 film Stardust , which featured the song Prelude 2 in C Minor, from the collection of solo keyboard music Well-Tempered Clavier , by Johann Sebastian Bach.