It’s nice to be pleasantly surprised when a movie takes the crime/mob/caper/procedural formula to another level. “The Boondock Saints” (1999) is a big, blood-splattered, hilarious Boston-Irish mess, with a dash of Willem Dafoe weirdness. One example: Irish twins bickering and f-bombing each other in an air duct above a Russian mobster’s lair just before the roof caves in and the twins go all Tarantino on everyone. Another: FBI agent Dafoe puts the homo in homicide while doing a “House” impersonation as he explains a double killing to doofus Boston detectives. Maybe you had to be there. I was. I laughed.