by Justin Marble Beeswax, directed by Andrew Bujalski, showing at Coolidge Corner Theatre. Boston native Andrew Bujalski’s third feature film, “Beeswax,” does not reel off the trials and tribulations of superheroes, pirates, serial killers, or giant transforming robots. There’s no killer shark, no Godzilla, no guns, and no aliens. Brad Pitt and Julia Roberts do…