Okay, this is not exactly an "arm's length" solving of oneidaone's #156 movie. I was at oneidaone's for an Easter Eve dinner gathering (lovely and delicious, of course!) and as usual they had some sort of music video playing in the living room. Whilst in the kitchen I heard the word "chiclet" come from the TV and the light bulb went on. The movie which I would never have guessed under any other circumstance is The Grateful Dead movie. Now that you know it, those clues make sense, don't they?