For a brief instant during the confrontation in Cosmo's office, the gun that Liz is holding has the slide back, indicating that it is empty.
The term commonly used to describe information fishing (like trying to get a person to accidentally divulge their password) as applied by hackers, is Social Engineering.
When Liz goes to the Dim Sum bar with Werner Brandes under the assumed name of Dorris, there is a group of singers singing the song Leroy Brown in Chinese. In the English version of the song, Leroy Brown gets in trouble over a girl named Dorris.
Mother wears a T-shirt bearing the name "Aleka's Attic", a band formed by co-star River PhoenixRiver Phoenix.