No, "Beyond Loch Ness" is NOT a good movie. That is not what I'm saying. The point I am trying to make is that although it is pretty much just another formula-based, low-budget sci-fi flick with a monster that decides to kill people all of a sudden for no reason, people trying to stop it, people who refuse to believe it, and a love story mixed altogether in it; the film itself is alright for what it is. It is much, much better than some of its predecessors and certainly going to be better than its descendants, who will inevitably follow.
"Beyond Loch Ness" is one of the rare sci-fi flicks to actually feature decent CGI. It wasn't perfect, no, and sometimes there were some parts that didn't really seem to make sense. Such as this early shot where all we see of the Loch Ness monster is just her lower torso as she approaches. It didn't really give her an impressive appearance and just didn't seem to fit right. But at least the creatures look 3-dimensional, aren't blurry or too slender, have muscular structures, etc.
Acting was okay. I won't say that it was worth writing home about, and neither was the screenplay. The character said lines that I knew were going to come up, and they said them the exact way I knew they would. Many times, characters would get irritating, or just bland, but for some reason, they do well enough to keep us watching. And the screenplay does have some plot holes. For example, if these plesiosaurs have been breeding in freshwater lakes for hundreds of years, and they span numerous offspring, who come ashore and kill vast numbers of people every season, how come they go undiscovered until just now? Maybe they usually stayed under water until just now, this one time, when they decide to take a family stroll? Good a guess as any, I suppose.
So bottom line, again, "Beyond Loch Ness" is not a good movie and it isn't a special one, not even for a low-budget made-for-TV sci-fi flick. But it is decent enough and is kind of entertaining. It's better than others such as "Python", "Alligator 2", "Gryphon", "King of the Lost World", and others. Recommended...only if you like low-budget flicks.