- Enforced Method Acting: Eragon's surprise when Brom comes up behind him when Eragon is looking through Brom's books for information about dragons.
- 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.
Eragon video game:
- Urban Legend of Zelda: The non-existing secret sword, which has somehow attained this status.