If I had to review scripts for a motion picture company and saw a reference to a programming language that's as common as Java or C, I be reluctant to keep even that reference in. Perl would be out of the question except in some unusual cases where it's mentioned along with more popular computer languages. Part of the problem would be that non-programmers would hear "Perl" and think "pearl" or the name "Pearl".

Perl shouldn't be anyone's first language anyway, so it's not a good idea to introduce it to people who haven't already heard of it from a programming background.