The movie is alright, not great but not bad either. The acting is good as well... again, not amazing but solid performance overall. The kids are well cast and have a good chemistry.
Overall, it had me too often scratching my head because the tone switched so often. It is marked as a thriller but in parts it was almost like one of those 80ies kids' adventure movies. Apart form that in parts it was suddenly very dramatic and touching a variety of subjects and then it was back to action. I liked the story overall but they seemed to try to cram to much into the 110 minutes. Many (often quite serious subjects) were touched upon but didn't go anywhere, backstories of characters were told but did not really impact the story in any way. This made the movie feel stuffed but empty.. like white bread without any toppings. Some aspects of police work seemed exceptionally realistic and others like how a kid imagines police work. The score seemed a bit over the top and very disconnected which enforced the different impressions between scenes (lighthearted, comedic piece for the mobile scene, dramatic orchestra for the police captain's backstory). The camera work was good (to my untrained eye) and the editing seemed fine (apart from a few strange cuts here and there).
Basically, the movie was okay but it pulled me out of my willing suspension of disbelief way too often. I can't recommend or not recommend because judging from other reviews, some people clearly enjoyed it enough. You should watch it and.form your own opinion. Just be aware that it's not a masterpiece. All in all it did make me watch, even though it was a carousel of being.tense/thrilled, amused and slighty perplexed.
