Well, it's not strictly Perl, but it may be usefull anyway.
If you are using a file to store these titles over time and
that file is in a format that you can use one of the DBI
modules to search against, you could craft a SQL query to
do near matches. SQL offers the LIKE select type, which
I have used to get approximate information in the past. I
have never used String::Approx, so I can't offer you a speed
comparision, but using the SQL way was plenty fast enough to
be used in a web search without noticed latency.
http://w3.one.net/~jhoffman/sqltut.htm#Using_LIKE
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