Can someone here help me with a tricky Apache mod_rewrite configuration?

I want to write a script accessible via a URL with the following shape:

   http://example.org/script/arg1/

Where script is my (Perl) script and arg1 is some... argument.

How do I configure Apache so script gets executed and passes the  
environment variable PATH_INFO along? I suppose I need to use  
mod_rewrite somehow. No?

-- 
Eric Lease Morgan
Head, Digital Access and Information Architecture Department
Hesburgh Libraries, University of Notre Dame

(574) 631-8604