The interesting thing about “Mad Max” (1980) is that Max is only mad for a few scenes at the end of the film. Talk about a slow buildup. It’s a cheaply made, poorly acted, abysmally edited cross between a police procedural and a sci-fi flick. And don’t get me started about the sound editing. It’s full-bore, Spaghetti Western quality (who knew Australian needed to be dubbed into English?). All that adds up to the perfect B movie, which is why it was such a cult classic, why it spawned a big-budget franchise and why it made Mel Gibson a star.