In an unremarkable directorial debut from actor Nicol Paone, and randomly produced by The Heartbreak Kid co-stars Ben Stiller and Malin Akerman, Dinner with Friends features pals Molly and Abby (Akerman, Kat Dennings) hosting a small Thanksgiving that gradually becomes more outrageous as the night progresses.  The guest list grows, and the entertainment evolves the get-together into more of a party where magic mushrooms and sexcapades become a primary topic of discussion.  There isn’t much…