“From the moment the invaders arrived, they were undone, destroyed by the tiniest creatures that God in his wisdom put upon this Earth. By the toll of a billion deaths, man had earned his immunity, his right to survive among this planet's infinite organisms. And that right is ours against all challenges. For neither do men live nor die in vain.”
Morgan Freeman - Narration

“With infinite complacency, men went to and from about the globe, confident of our empire over this world. Yet across the gulf of space, intellects vast and cool and unsympathetic regarded our planet with envious eyes and slowly, and surely, drew their plans against us.”
Morgan Freeman - Narration

“- Michael: Maybe he's not that smart. Maybe he's like a worker bee who only knows how to push buttons or something.
- Elliott: He is too smart.
- Michael: Okay, I just hope we don't wake up on Mars or something surrounded by millions of little squashy guys.”

Robert MacNaughton - Michael
Henry Thomas - Elliott

“Whoever they are, they're as smart as God and a lot less nice.”

Angela Bassett - Dr. Kaela Evers

“- Professor Porter: Looks like a man but walks like an ape. He could be the missing link!
- Clayton: Or our link to the gorillas.”
Nigel Hawthorne - Professor Porter
Brian Blessed - Clayton