The first thing I faced when I heard of this movie were bad critics. Second, divided opinions of people who've watched this movie. I decided I should take a look and see for myself, being a fan of fantasy movies, and I didn't regret it, but I was not charmed either.
The first thing, the actors. Always sceptic about introducing new kids into the movie industry, I tried to keep it objective and on low expectations, and it turned out I didn't have to because Tom Cameron (Theo) and Sophie McBride (Rachel) were really good. They represented their characters on a high level of quality, and for that I congratulate them, since this is their first role in a movie ever. :) Seeing Sam Neill in this movie firstly pleasantly surprised me, and then brought me to the edge of disappointment since he acted like he didn't care of the success of this movie nor his reputation. The rest of the crew was OK.
Now the story. The plot has quite a lack of originality in the base of it, but some specific things are pretty interesting, which I won't reveal here in case you haven't watched the movie. The story is a bit slow at moments, but not too much, though it is kind of in fragments. Its development didn't come out well so the end comes suddenly. Btw, the ending scene is really the best scene in the movie.
The visual effects are well done, though there's a lack of those. The kids didn't use their powers much. The drones are scary, but the Gargantuas are nothing fearsome, and they should've been the scary of the scary since they're monsters ready to destroy Earth. The atmosphere is spooky, though a bit too gray and dull at times. I had a feeling I had to see something colorful and vivid after seeing this movie. I was grossed out a few times by some scenes, which is good since that was the point, so my opinion is that the visuals are very well done.
The music was keeping the tension the story didn't have at moments, so it came out a bit too intensive.
At the end, this movie is not a masterpiece, and definitely not for those who aren't fans of the genre, but it definitely isn't bad and unwatchable. Because of Sophie and Tom, this one has a 6 from me.