Watchers
A boy takes in a stray dog, later finding out that it's an ultra-intelligent runaway from a genetic research lab. Unbeknownst to him, the dog is being stalked by another escaped creature that's not quite so friendly.
The cast behind this title
Titles you might also enjoy
About
Watchers (1988) is a horror movie. Starring Corey Haim, Michael Ironside, Barbara Williams. Rated 5.4/10 on TMDB. Watch it online free on ZapFlix.