When the Entertainment Weekly cover hit with Edward and Bella in the water, sharp-eyed readers noticed that Robert Pattinson’s eyes were not golden and Kristen Stewart’s were not brown. We figured since there was so much water involved in the scene wearing contacts wasn’t possible and that they’d fix it digitally in the final touches on the film (much in the same way Kristen Stewart couldn’t wear contacts in the New Moon cliff diving scene.)
Well it turns out there is another answer. Bill Condon’s partner, Jack Morrissey responded to fan inquiry and here is the answer. According to Bill Condon, the picture in EW is a rehearsal shot. They had the actual contacts in when the cameras actually rolled and things like that are also double checked in post production.
So no worries folks, the eye-color is correct in the film.