Follow the Leader: Like the incredibly popular Twilight films, this movie features a love triangle, director Catherine Hardwicke, and Billy Burke as the lead female's father (though he doesn't have his mustache this time around). Shiloh Fernandez was also one of the finalists to play Edward Cullen.
Hostility on the Set: Actually averted. Amanda Seyfried had a bad experience with Shiloh Fernandez at a dinner party, so Catherine Hardwicke had to persuade the actress to give him a chance. By all accounts however, they seemed to work well together once production got underway.
Missing Trailer Scene: Valerie breathing heavily and saying "What big eyes you have" before looking up and then closing her eyes as the Wolf growls and breathes on her.
Novelization First: A novelization of the film was released 1-2 months in advance. Notable for pissing a lot of people off for not including the ending of the movie in the novel.
Sam Claflin auditioned for the role of Henry and screen tested with Amanda Seyfried before Max Irons was cast.
Taylor Lautner was considered for the role of Peter. He previously appeared in Twilight (2008) which was also directed by Catherine Hardwicke.
Christina Ricci was originally considered for the role of Valerie, and was a strong candidate before Amanda Seyfried was selected. It was decided that she was too old for the role, being several years older than both love interests, Shiloh Fernandez and Max Irons (Valerie is also supposed to be in her late teens, while Ricci was in her early 30s). Ricci had previously played a werewolf in Cursed (2005) and a human with a pig face in modern fairytale Penelope (2006).
Working Title: Shipped to theaters under the code name "Fangs of Affection".
