The Mice are the Bigger Bads in the 2005 film adaptation of The Hitchhiker's Guide to the Galaxy. Despite this however their roles are smaller than other antagonists in the movie (the vogons and their leader Prostetnic Vogon Jeltz). They are the movie variations of Frankie & Benjy.
They are the guises of a pair of scientists who long to consult with Deep Thought and ask about "Life the Universe and Everything."
Role in the film
The computer then volunteered to answer a mysterious ultimate question and create the knowledgeable machine we call Earth. Later, the pair take their mouse form and sabotage the Heart of Gold, and later kidnap Trillian, Ford and Zaphod, so they'd use Arthur's brain for experimenting. After a struggle, Arthur kills the mice and they are revealed to truly be Frankie and Benjy