"Several scenes involving Dane DeHaan were cut due to the disturbing and intense nature of the scenes. These include: Harry drinking and speeding while the girl he is on a date with begs him to slow down. An extended version of Harry's transformation into the Green Goblin, including his teeth growing and shattering, and his nails growing into claws. The Green Goblin showing himself to Felicia, who is in the building during the transformation, and sparing her life. In this scene, the Goblin kills Menken, and proceeds to destroy the Oscorp building. The Goblin cutting the web that Gwen is holding on to, which leads to her death. Alternate versions of Gwen's death also included the Goblin fatally stabbing her, and breaking her neck with his bare hands."
According to the actors, the original Goblin vs. Spider-Man fight was longer and more violent, but had to be cut in order to keep the PG-13 rating. Things that were cut include a scene where the Goblin (Dane DeHaan) is conscious when Gwen dies and laughs at Peter as he cries over Gwen's body and a scene where Peter almost beats the Goblin to death after Gwen is killed.