What actors and actresses appeared in Guitars Cadillacs - 2005?

You're probably thinking of the 1990 film "Cadillac Man" starring Robin Williams, and directed by Roger Donaldson.

There appears to be no film or movie titled "Guitars Cadillacs" or "Guitars Cadillac". There is a band called "Guitars Cadillacs", but no movie of that name.

Please let me know if you'd like me to help find more information about "Cadillac Man".