“Marilyn Hotchkiss’ Ballroom Dancing and Charm School” has a clunky title but an elegant concept: that the fantasy of the fresh start is attainable for all of us. It’s as easy as one, two, cha-cha-cha. Yes, this is another one of those movies about finding your own soul, and perhaps a soul mate, on the dance floor. But “Marilyn Hotchkiss” demonstrates that the same old construct can be made thrillingly fresh with the right components. In fact, this film does other power-of-dance movies one better by downplaying the dancing — it’s in there, but doled out carefully — and underscoring what its brethren often lack: a compelling, wrenching and wonderfully inspiring story. [More]