Imaginaerum is one of those movies that will leave you confused for the first hour in to the movie. The bits and pieces of the soon fading memories of Thomas Whitman will confuse you and give more questions than answers. The last quarter of the movie will offer some explanations, but some will remain and the gaps in the life of Thomas Whitman are left up to the viewer to imagine.
The special effects are beautiful, but cannot compete with Hollywood movies with multi-million dollar budgets. Actors do their jobs pretty well, but some of them are not as convincing as you would like. Especially the young Gem Whitman leaves something to be desired. Francis X. McCarthy on the other hand is very convincing playing the role of the old demented song writer Thomas Whitman.
If you are a Nightwish fan, you'll get a kick out of this movie. If you have never heard of the band called Nightwish, you might enjoy it anyway if you are one of those people who like the fact that not everything is clear at the very beginning.
Overall, the movie is very touching once you get into it. It's not one of those "leave your brains at the door" movies because you really have to think and try to identify with the characters. With this movie, you can't expect things to be handed to you on a silver platter. Though something else might be...