The level of coffee in Helmer's cup switches back and forth by inches between shots.
Helmer procures hot coffee, and enters the archive. Mogge returns, with Krogshøj, and they lock Helmer in - he's left standing with a cup of scalding coffee - he can't move with setting off the infra-red alarm sensors. He's left, statue-like, staring at his cup of steaming liquid. Cut to Drusse and Bulder. She says she has to perform a seance for some doctors, and tells Bulder that in 1 hour, they are to attempt to enter the archive. When they get there, they inadvertently liberate Helmer, who casts away his cup of still scalding, yet hour-old coffee.