“Bull Shark” (**1/2 out of four) was an agreeably done thriller about another ravenous shark that’s on the loose this time in a small Texas town in which the concerned local law enforcement (Thom Hallum and Derrick Redford) hurry to track it down while the local mayor (Richard Ray) wants to hush things and keep it quiet so as not to scare away local tourist money. Yes, it’s another killer-shark-on-the-loose movie ripped off from “Jaws” (and “Jaws 3” in particular in this case) but this has sharper teeth than most other imitations, thanks to a stronger-than-usual screenplay and characterizations, solid acting, and also crisp cinematography from Jeff Hamm. No classic but far better than most other “bull” you find at Redbox.