I recently read an excerpt from the book. And since I've never published, and have never sold anything as a professional writer, I will say only this.

I read the excerpt.

Mad NYC Genius: If what you're suggesting is that the excerpt you read wasn't very good, that's not the real takeaway here re screenwriting. The producers probably took the central story concept - a soldier gets killed in action, only to wake up alive the next day, quicker, stronger and smarter each time, and will keep fighting until he figures a way out of the 'curse' - [that's a strong high concept] then worked out a screenplay story with the writer that works as a movie.

There have been many inferior books that have been made into superior movies because they had at their core a strong story concept. For some examples, go here.

Sounds like the spec Source Code. Or Source Code sounds like this. Either way...

I've read the All You Need Is Kill script and thought it was great. In fact, I reached the last page and turned back to the first and started reading it again.

There were a couple of things that needed tweaking, but overall, it was quite good.

@L.F.: Could you tell us what about All You Need Is Kill you liked? Characters? Plot? Style? Voice? What about it resonated with you?

No idea about the quality of the book but as for the spec, Dante's writing is incredibly sharp.

If I were hiring a writer for an action or science fiction project, he's the one I'd go after first.

His action lines are lean yet still vivid, which is all the more impressive when you consider how complicated and unusual some of the scenes are that he's describing.

The hook is the same as SOURCE CODE but this is a much more entertaining script, in my opinion. The whole thing just felt like I was in a really fun video game, and I don't even play video games.