Wasted effort
There is no point for this movie. When I heard Joel Courtney was cast as Tom Sawyer after Super 8 I was intrigued and expected to see a decent adaptation.
Unfortunately the writers/director decided to take the check list approach - the movie consists of scenes that do seem consistent with the book (It's a long time since I read it though), but they follow one after another without much connection.
It's like the movie makers went like this "Hey time for the fence painting scene!", "And now the funeral scene" "Now time for the lost in caves scene!" But it never comes together into a fluent movie.
There is no fleshing out of the town, the other characters, the historical setting, etc. It feels rushed, as if the characters were hurried by the director "go on, faster, we need to get to next scene within 60 seconds!".
There is one thing you could do with this movie to make it somewhat useful - add clips from it into a digital version of the book, instead of the illustrations found in traditional books... and even for this it's not that great.
"All those moments will be lost in time, like tears in rain"