An all-inclusive knowledge on knives and their related accoutrements? A deep-seated obsession for slicing recently departed flesh? These aren’t characteristics parents usually foster in their children—unless, of course, the family’s lineage is heavily splattered with a long line of butchers. The Dutch film ‘The Odd One Out’ is part of the third annual Petaluma International Film Festival, and explores the effects of a child’s inability to assimilate into the family business. A complete schedule of films is at www.petalumafilmfestival.org, and The Odd One Out screens Saturday, Oct. 22, at Boulevard Cinemas. 200 C St., Petaluma. 9:50pm. $10. 707.762.7469.