“Mafia Mamma” (*1/2 out of four) was a numbskull action comedy about a suburban mom (Toni Collette) who unexpectedly finds out that she inherits her grandfather’s mafia empire in Italy and has to defy everyone’s expectations including her own as she travels to Italy to start up her new family business. Ill-conceived light-hearted comedy about the mob runs out of ammo and laughs pretty soon, despite Collette’s best efforts. Mafia completists and comedy fans should say arrivederci to this clunker and watch “Married To The Mob” or even “The Freshman” instead.