In a specific scene, Chucky just talks like a normal person and the boy acts normally. Before that there are events that would never happen in real life, like that girl treating everyone with hate for free. This type of character clearly only serves to make the plot work.
Overall i liked it... but it could be a little less surreal some scenes, despite being fiction. :)
Overall i liked it... but it could be a little less surreal some scenes, despite being fiction. :)