There is a possibility that Eragon's sequel, Eldest, will be made into a film. When asked whether there would be a movie adaptation of Eldest at the premiere of Eragon, Christopher Paolini replied, "I think we'll know after opening weekend." Many critics have considered the possibility of a sequel in their reviews of Eragon. One critic said that 20th Century Fox's plans to adapt Eldest was "jumping the gun" and that "they will have a tough time convincing anyone but the most die-hard fans to return for another helping." Even some critics who gave the film positive reviews were skeptical towards the possibility of a sequel: "That the studio hopes to build a franchise on this, now that—that is expecting way too much."
According to an interview with Stefan Fangmeier:
"I'm not quite sure what is currently going on. My own personal perspective is that until we sort of figure out what happens in the third book. Evidentially, I asked Christopher (Paolini; writer of the Eragon trilogy)..., about that and he was not volunteering much of what was going to happen. I think it's very important to see where this ends up; how it's resolved. I think until you kind of have an understanding of what the third piece of that puzzle is, it's kind of hard to look at that second book, of course I read it, it's very much a transitional story element. I think one would be best off to write the third film first, and then, being happy with that, going back to the second one and doing all the set-up work that will pay off in the third. Then probably filming two and three together as they did with Pirates of the Caribbean; as one production."
"That means, given the time frame, it might still be another year before there are actually are scripts for both films and these things can move ahead. I don't know if Fox is waiting to see the revenues the DVD will create. I think they were modestly happy with the worldwide box office."