It's virtually impossible to discuss Goodnight Mommy without discussing some spoilers, but before I jump into those (in the next paragraph,) I will give my general non-spoilery thoughts. I found this movie to be a poorly-executed idea. I admit that I appreciated how the menace of the movie seemed to shift as things progressed, because there were at least moments where I questioned who was really the antagonist. But the actions of the characters get progressively more insane and ridiculous to the point that I found it unbelievable and intolerable. What started as a good concept quickly devolved into a lame attempt at graphic gore and other gross-out moments. None of these worked even slightly, and just managed to annoy me instead. Needless to say, I won't be recommending Goodnight Mommy to anyone else.
Now let's talk about the major spoiler in this movie. I wonder if I was much younger or had less experience watching movies then perhaps I could have been fooled by the fact that there was only one son still alive. However, we live in a post-Sixth Sense world and this kind of thing has been done better in the past. When one character is completely ignored by everyone except one other person, never interacts with anyone besides that same person, and magically disappears from rooms, then that character is imaginary. They were so blatant in showing their hand that I couldn't tell if it was intended to be a twist or not. About halfway through I was hoping and praying that there was a double-twist that was coming (like the mother really was someone else) and the dead twin thing was just a bait-and-switch element meant to fool the audience. Sadly, Goodnight Mommy was a one-trick pony, and it's about as effective as I would be at trying David Blaine's sleight-of-hand magic.
Now let's talk about the major spoiler in this movie. I wonder if I was much younger or had less experience watching movies then perhaps I could have been fooled by the fact that there was only one son still alive. However, we live in a post-Sixth Sense world and this kind of thing has been done better in the past. When one character is completely ignored by everyone except one other person, never interacts with anyone besides that same person, and magically disappears from rooms, then that character is imaginary. They were so blatant in showing their hand that I couldn't tell if it was intended to be a twist or not. About halfway through I was hoping and praying that there was a double-twist that was coming (like the mother really was someone else) and the dead twin thing was just a bait-and-switch element meant to fool the audience. Sadly, Goodnight Mommy was a one-trick pony, and it's about as effective as I would be at trying David Blaine's sleight-of-hand magic.