Jim Weir and Jack Clark make their feature-length directorial debut with “Birdeater” (credited as “Fax Machine”), and they strive to craft an immediate impression with their work on the endeavor. It’s a story about a gathering, and in movies, such social events are never without incident, open to the behaviors of characters who probably shouldn’t be around one another. In this case, the celebration is a bachelor party (or “Bucks Party”), which is often depicted as a chaotic situation of male bonding and debauchery. “Birdeater” hunts for a different kind of mayhem, turning to drugs and confrontation to whip up tension, following Weir and Clark (who also writes the picture) as they battle to depict a charged occasion populated with characters in various states of mental distress. It’s a recipe for compelling chaos, yet the helmers labor hard to generate an abstract viewing experience, looking for engagement on a visual level, not a dramatic one. Read the rest at Blu-ray.com