Ready Player One is a lot of fun but not much more than that. Its kinda similar to Pacific Rim in that sense, although RPO is obviously a lot better. Visuals are fantastic, plot is decent (even though some details seem like they were suggested by children and not thought out any further). I don't know if I'd try to convince anyone to go and watch it but if you're interested its worth a watch.Well I hope the book is better, I already bought it.
Its probably much more fun to watch as a gamer as well, my friends who aren't gamers that I watched it with didn't like it so much.