“Bad Fish” (*1/2 out of four) was simply a bad movie about a marine biologist (a miscast Jonny Lee) who investigates a series of deadly attacks on fishermen in an Oregon town and finds that the offender is a lethal mermaid who needs to find a mate before returning to sea. Laughably silly movie either needs to be played for camp or trash but doesn’t do either and winds up a waste of time. Horror fans would best watch “The Little Mermaid” for more cheap thrills.