"Ferocious Planet" wasn't all entirely bad, it had its moments, though few and far apart.
The story here is about some scientists having found a way to look into other dimensions, but then something goes wrong and a group of people are transported into another dimension, where they are fighting an unknown species of life. Sounds fairly alright, doesn't it? Yes. And the idea is actually good enough, but the movie suffered from a lack of ambition and the element to fully draw you in. And some of the decisions made by the characters in the movie makes you go "what? why would someone do that?" - it just doesn't always make sense.
As for the acting in "Ferocious Planet", well it wasn't too bad either. But frankly speaking, it was mostly mediocre performances. It was like they hadn't enough emotion and sparkling energy with them, and it resulted in that you felt distanced and didn't care about the characters in the movie. And you just got to love the role that John Rhys-Davies had in the movie, and the actual amount of time he was in the movie. But a good way to lure in people, by having a familiar name on the cast list.
For being a SyFy movie, then "Ferocious Planet" could have been worse than it turned out to actually be. The movie is adequate, and provides half-hearted entertainment throughout the entire length of the feature.
One this that really worked well for the movie, was the design of the creature in the other dimension. It looked really cool. It did look fake at times when it was moving, but most of the time it looked believable enough and good enough. So this worked well for the movie.
Having seen "Ferocious Planet" now, then I can say that SyFy have other movies available that are better than this one, and they also have a lot of movies available that are far worse.