mentioned in dialog: Anna Springer: "What are you doing here anyway?" Wilsberg: "Blowup." Springer: "You swine." Wilsberg: "I was talking about the movie." Overbeck: "Antonioni."
Ekki mentions that the professor could not have gotten out of the room behind the lecture hall since he wasn't Harry Potter. In Harry Potter and the Prisoner of Azkaban Hermine uses a spell in order to be able to be at two places at the same time. Ekki confuses Harry Potter with Hermine Granger.
Wilsberg: "Dr. Haus?" Dr. Haus: "Yes. Please no comments upon the homophony of my name and that television Doctor. I have been in existence longer than him."