When Mel Gibson was first becoming known as a film actor, he had a lot of obvious things going for him: acting talent, good looks, ruggedness, a charisma that could land on either side of “sly” or “menacing.” In other words, arguably, all the stardom requisites. But he was interesting beyond that, because of the movies he was in. Pictures such as “Mad Max” and “The Year of Living Dangerously” were debatably genre pictures but they had energy and intelligence that was way beyond generic. It seemed also that Gibson had meaningful alliances with the makers of those films, directors George Miller and Peter Weir. Whether it was just happenstance that all these guys were coming up in the Australian film industry at the same time or if Gibson himself was indeed a more-discriminating-than-average film actor didn’t matter; it looked good. And when Gibson made his big-Hollywood move in “Lethal Weapon” he did, although it’s tough to really remember it properly now, play