Review of Serenity

It's all in the imagination of a kid who plays computer games all day, & he's almost never in the film. The only "real" event is at the end, when the kid stabs his stepfather to death, but even that isn't in the film, except as reported on the "news". So if you had any feelings for the characters, or interest in the plot, you've been tricked into to caring about nothing. Isn't it enough that we're expected to suspend our disbelief in characters & events that came from a scriptwriter's imagination? Do we have to be told, in the story itself, that none of it was real?