Tasembeker shoves the needle into Jobel's chest without pushing down the plunger to inject the liquid. In the very next shot of Jobel, however, the plunger is pressed down and the liquid is gone.
On the DVD, when Peri meets the DJ, the caption says that the song being played is "In the Mood" by Ted Heath orchestra. Actually, it's "Moonlight Serenade" by Glenn Miller.