John Carter
I have a soft spot for the film so I am biased. Princess of Mars (much better title) was the first book I read, aged about 13 or so. Burroughs' writing is a bit dated but I reread it recently and still enjoyed it.
I think they did a really good job bringing it up to date for modern audience. I wasn't too keen on the first 5 minutes which felt too much like Flash Gordon, but once past that it was very enjoyable. And Dejah Thoris ...

It's a shame it got poor reviews from critics. It seems to be getting a wide range of reviews that are very polarised. People hate it or love it.