Alex Gibney and Alison Ellwood’s MAGIC TRIP is a freewheeling portrait of Ken Kesey and the Merry Prankster’s fabled road trip across America in the legendary Magic Bus. In 1964, Ken Kesey, the famed author of “One Flew Over the Cuckoo’s Nest,” set off on a legendary, LSD-fuelled cross-country road trip to the New York World’s Fair. He was joined by “The Merry Band of Pranksters,” a renegade group of counterculture truth-seekers, including Neal Cassady, the American icon immortalized in Kerouac’s “On the Road,” and the driver and painter of the psychedelic Magic Bus. Kesey and the...