I can see why 'Approaching the Unknown' would not be to everyone's liking. It's very much a slow-burner of a film and is really more of a character study than anything else. With space movies I think people have come to expect drama filled, save-the-world type films and this is simply not that. This is the story of a man who has embarked on a mission that very few people on Earth would be brave enough to do, and the struggle he consequently went through.
I actually quite enjoyed it for the most part. A film with basically only one character is never going to be the most exhilarating watch, however the pacing of the film doesn't feel overly slow. Mark Strong in the lead role does a good job of being just interesting enough in what would have been a very tough role to take on.
As mentioned, this won't be for everyone. People who go into this expecting an 'Armegeddon' or even 'Gravity' type film are going to be let down and I suspect that is a lot of the reason why this film has not been received very well. However if you go in simply expecting a solid exploration of astronaut life and the challenges they can go through mentally, I think you will find yourself quite enjoying this one.
