“The Meg” was a hit film in 2018, and it’s taken a long time for the studios to get going on a sequel, which is an unusual choice when dealing with material that explores a rampaging megalodon. There’s a “Meg 2” finally coming sometime this year, but the producers of “The Black Demon” are looking to take advantage of the long wait, cooking up their own version of a rampaging megalodon feature. However, to really make a memorable disaster picture with a monster shark, one has to spend big bucks, and the producers of “The Black Demon” don’t have that kind of money, giving the eating machine more of a cameo in its own movie, with screenwriter Boise Esquerra believing most audiences will be happier to watch a story of ecological ruin and family strife. Of course, that’s not the case, and the new killer shark event on the scene misses its potential by a country mile. Read the rest at Blu-ray.com