“Hot Seat” (** out of four) was a middling action potboiler about a former hacker (Kevin Dillon) who arrives at work and finds out he literally cannot leave his seat unless he hacks into a high-level bank and is tormented by an unseen perpetrator while a burnt out cop (who else but Mel Gibson) tries to break in and rescue him. Relatively well-made and well-acted but never rises above solid mediocrity. Dillon does his best to enliven things with his rogue charisma but Gibson a…