Breakaway Pop Hit: While the film failed both critically and financially (taking the careers of the director and the lead actor with it) and was promptly forgotten about, the song "Keep Holding On" became yet another hit for Avril Lavigne.
Creator Killer: The first and last movie directed by Stefen Fangmeier.
Disowned Adaptation: Whenever this movie is mentioned on Reddit, Christopher Paolini either follows the meme of denying its existence or expresses gently his sympathy toward his fans who were disappointed by it.
Enforced Method Acting: Eragon's surprise when Brom comes up behind him when Eragon is looking through Brom's books for information about dragons.
Franchise Killer: The film inexplicably altered so many plotlines and cut so much (even given it is based on a Door Stopper) that a sequel based on the plot of the second book would have been incredibly difficult to do even if the first had not been awful enough to cut any chances.
Star-Derailing Role: Ed Speelers was debuting in this movie as a promising newcomer, to the point he was nominated to the Best Young Actor in the 2007 Saturn Awards regardless of the movie's quality, but sadly enough, his star film career both started and ended with it given how the feature and role turned out. He has acted in a handful more of films since, but nothing remotely similar to what was expected of him at the time. (He has got much more success in TV, though, counting on an awarded role in Downton Abbey.)
Stillborn Franchise: The movie was a critical failure and a financial disappointment. It also made it next-to-impossible to create a film of the second book due to discontinuity created by the first film, not to mention the number of ignored characters that would need to be introduced.