 Frank and Lara both get passphrases to use for the voice  identification of the Millennium Group network. Both are references  to classic science fiction movies: Franks phrase "Soylent Green is  people" is taken from Stanley R. Greens (qv)  _Soylent Green (1973)_ (qv), while Laras passphrase "Open the pod  bay doors please, Hal" refers to Stanley Kubrick (qv)  _2001: A Space Odyssey (1968)_ (qv).