Friday is premiere day at the box office, a chance to see how major movies open and to gauge how they might perform over their initial three-day weekends. Trouble is, the movies that opened this Friday are the ones that nobody cares about. Larry Crowne, the romantic comedy starring Tom Hanks and Julia Roberts, began with an inauspicious bow of $4 million from 2,972 locations. That portends a 3-day take of just $15 million. Fox’s Monte Carlo placed fifth with a debut of $3.1 million from its 2,473 venues. But let’s get to the Bots. Friday marked day four of Transformers 3’s super-extended, six day holiday weekend (seven, if you throw in Monday). The sequel took in an estimated $32 million from 4,013 locations for a current domestic total just shy of $100 million. Clearly, that is a huge number by 2011 standards. It is only diminished when Transformers 2’s record-breaking 2009 debut (without the latest film’s higher 3D prices) is taken into account. But, throw in international grosses and Dark of the Moon is still the cash cow we all knew it would it would be. Details and analysis tomorrow.