Rather then writing a review in a more traditonal scense, I've tried to incorporate and focus on an aspect of the movie that writers could benefit from. It's something that's helped me. Hope it does something for someone else. And feedback on that approach would be appreciated

The Invisible
Written By Mick Davis and Christine Roum

Logline: After an attack leaves him in limbo -- invisible to the living and also near death -- a teenager discovers the only person who might be able help him is his attacker.

  The Invisible, a story where the main character, Nick Powell, spends 2/3’s the story dead – or in limbo, would appear to propose a major problem for any story lack of action from the main character. So, how is it “The Invisible” is able to create drama and conflict, action and thrills, with a fundamental aspect of storytelling often overlooked that aspect is Character Web. Character Web the institution of characters that not only interact in a world outside the main character, but actions and own revelation shape and excel the story of the central character.
  
  The first 20-30 minutes of “The Invisible” are crucial to the latter part of the story because it sets up multiple conflicts between characters on a values, for instance, Nick’s feelings toward his mother, the loss of his father and toward a troubled teenage girl, Annie. After the disappearance of, Nick he begins to follow these characters around, he’s faced with revelation after revelation about them and acts. Though he’s dead, it’s established early that he’s able still to touch and move things even though they return back to normal seconds after it gives the writer a chance to allow, Nick to vent his frustrations of his situation by tossing and throwing things around. After, while the police lightly interrogate his attacker, Annie, Nick unable to intervene knowing her guilt tosses her of the roof.
  
  One must also consider that while following and exposing these characters you have an opportunity at revelation on multiple levels that still must affect the main character and main story line. Marcus realizing, Annie has killed somebody and the cops are sniffing around him, leads him to move the Nicks body. Marcus revelation affects the main story line.
  Another intense scene that effect came from the early setup between mother and son is when Nick’s mother continues working diligently while her son is out there missing. Frustrated, disgusted over the site of it, Nick bombards her work desk, shakes his mother and smashes a window. Moments after the outburst, Nick watches his mom unravel in front of his eyes, balling for her son. That’s action. That’s plot. That’s conflict. If a writer wants to learn what scenes are needed by his sub characters to make bigger story they only need to put themselves in Nicks shoes and witness moments such as this from that character and adapt it in a way that relates to the main character and his story line creating great character web and overall better story.

  There’s a theory why it only got a 6/10 at imdb.com, which has to deal with the ultimate ending. I understand the level of writing and why the story got produced. And suggest you take a look at it keeping in mind in Character Web, a valuable lesson is to be examined. If for nothing else I’m sure a star was born in Margaria Levieva who plays Annie.

Thank You.

BLB

Haven't seen the movie but I think I understand what you're saying about the character web - that all the characters are connected in some way to the main character.  Since none of them exist independantly, any action one of them takes impacts our protagonist in some way.

That's my take anyway.