“The Irish Mob” (**1/2 out of four) a relatively well-done underworld potboiler about a violent Irish crime boss (Rob McCarthy) whose turf is invaded and threatened by ruthless police detectives (Pauline O’Driscoll and Liam Griffin) who are determined to bring him down. Imagine “The Departed” remade by the Guy Ritchie of “Lock, Stock, And 2 Smoking Barrels” and you have a good idea of what to expect here. Film is as blunt as its title and stuffed with blood and blarney but having said that is fast-paced and somewhat fun, especially for fans of the genre.