Last week, fan pants were soiled when a behind the scenes teaser for Predators upstaged SXSW and quickly made its way to AATM. Not a week later, the teaser trailer hits, showing more scenes of running, sweating and nervous glancing. For its part, the trailer is pretty effective — even more so if you haven’t seen the teaser– but I’m not on board. Still. Robert Rodriguez, who’s not directing but has his fingerprints all over the project, isn’t a guy …