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Taylor Lautner was considered for the role of Quentin Smith.
Freddy's sweater was knitted by Judy Graham, the same woman who knitted Freddy's sweater in the original A Nightmare on Elm Street (1984).
Kyle Gallner suffered a cut to his abdomen when the glove Jackie Earle Haley had been wearing failed to bend back down, leaving one of the knives still extended. Haley didn't realize this until the scene was finished.
For his big scene in the opening sequence, Kellan Lutz chose not to sleep for a few days to get himself into character.
The Freddy gloves were the most protected props on the set. Previous films had issues with the gloves being stolen. Most notorious was a glove was stolen from one of the films and appeared in Evil Dead II (1987) (see trivia for that film) hanging in a shed.
When Jackie Earle Haley was asked what put him in the right mindset to play Freddy Krueger, he said "sitting in the makeup chair for three hours. After that, you feel like you could kill someone."