“‘Forrest Gump’ with a mantra” — that’s the underlying premise, in a nutshell, of “Meeting the Beatles in India,” which has filmmaker Paul Saltzman recounting the week he spent hanging with the Beatles under the tutelage of the Maharishi Mahesh Yogi during their famous sojourn to the ashram in 1968. Saltzman has a tale to tell in having been nearly the only non-entourage-member along for the enlightenment alongside the Beatles for that legendary spiritual/media event. By virtue of the camera in his backpack, he also ended up being a house photographer, too… although he forgot about the wealth of stills in his basement for several decades afterward, maybe offering proof that there’s such a thing as too much meditation.