Everything I saw at last weekend's Sundance London Festival had that effect on me. There wasn't a single dud amongst the five feature films and the programme of 10 shorts that I watched during the festival. Still, The Inevitable Defeat of Mister and Pete stands way out as the screening that generated the most emotion from me.
Celebrities hopping into bed with the diet industry is nothing new, of course. Ever since a size 12 Oprah Winfrey wheeled a cart filled with 67 pounds of animal flesh onstage to celebrate her hard-won weight loss, stars have known there's money to be made by spilling your guts about your overspilling gut.