the filmmakers behind "twilight" worked to create a film that was as faithful to the novel as they thought possible when converting the story to another medium, with producer greg mooradian saying, "it's very important to distinguish that we're making a separate piece of art that obviously is going to remain very, very faithful to the book... but at the same time, we have a separate responsibility to make the best movie you can make." to ensure a faithful adaptation, meyer was kept very involved in the production process, having been invited to visit the set during filming and even asked to give notes on the script and on a rough cut of the film. of this process, she said, "it was a really pleasant exchange [between me and the filmmakers] from the beginning, which i think is not very typical. they were really interested in my ideas", and, "...they kept me in the loop and with the script, they let me see it and said, 'what are your thoughts?' ... they let me have input on it and i think they took 90 percent of what i said and just incorporated it right in to the script." meyer fought for one line in particular, one of the most well known from the book about "the lion and the lamb", to be kept verbatim in the film: "i actually think the way melissa [rosenberg] wrote it sounded better for the movie [...] but the problem is that line is actually tattooed on peoples' bodies [...] but i said, 'you know, if you take that one and change it, that's a potential backlash situation. meyer was even invited to create a written list of things that could not be changed for the film, such as giving the vampires fangs or killing characters who do not die in the book, that the studio agreed to follow. the consensus among critics is that the filmmakers succeeded in making a film that is very faithful to its source material, with one reviewer stating that, with a few exceptions, ""twilight" the movie is unerringly faithful to the source without being hamstrung by it."