“Dig” (*1/2 out of four) was a tired potboiler about a widower (Thomas Jane) and his deaf daughter (Harley Jane) who are held hostage by two criminals (Emile Hirsch and Liana Liberato) and forced to dig under their house to find a hidden reward. By-the-numbers story ripoff of “Desperate Hours” covers all-too-familiar territory and gets really unpleasant at times (do we really need to see a kid hostage getting shot and executed?) Liberato fares best out of the whole cast. Both Thomas and Harley are actual father-daughter in real life but they both themselves should start to “dig” for better scripts.