That is a movie by the late Sam Peckinpah[Wild Bunch] which actually becomes 
a "road" movie about a guy driving with this head to claim a reward for 
delivering it.Just recently re-issued on dvd it actually is a cult movie 
that is worth seeing.

>From: bob_hutton@standardlife.com
>Reply-To: audities@smoe.org
>To: audities@smoe.org
>Subject: Re: Funniest band name ever
>Date: Thu, 14 Jul 2005 13:36:48 +0100
>
>
>
>
>
>Not sure if this is a band name or the name of an album, but it has stuck
>with me for years:
>
>"Bring Me the Rest of Alfredo Garcia" .
>
>
>Re Doug Powell:  I quite enjoy some of his music too, but I am finding it
>difficult to comprehend the wailing and gnashing of teeth over his decision
>to do something else for a living.  (1)  I thought virtually all indie
>power-poppers had "day-jobs", even the ones lucky enough to have their job
>in the music biz, eg production, journalism, promotion, whatever; (2) The
>ones that do it as a hobby, do it because they love making music - and you
>can't force someone to do what they don't wanna do any longer.  Just my
>tuppence worth.
>
>Bob
>
>