During the opening credits several names are misspelled, to be corrected using an arrow or inserting letters. Example Niels Arden Oplev's first name is written Neils and then an arrow indicates that ei should be switched. The title is misspelled twice, and then crossed out with a line, before the real title appears.
During the end title a drawing of a saw appears several time, referring to the title Fukssvansen (the old Danish word for saw.)