That's a terrible trailer. The teaser was better. It's directed by the guy who wrote and directed Wall•E so I'm definitely looking forward to it. The series is a classic. Especially the first book the Princess of Mars which was Edgar Rice Burroughs first novel and what the film is based on. I've always wanted to read them and with the film coming up now is definitely the time. As someone on Youtube put it:

If you believe the likes of Roddenberry and Lucas (to name a few) weren't influenced by Burroughs' work, you ought to read this book.