How do I download a file with WWW::Mecha​nize

#!/usr/bin/perl
use strict;
use WWW::Mechanize;

my $url = 'http://divxsubtitles.net/page_subtitleinformation.php?ID=111292';
my $m = WWW::Mechanize->new(autocheck => 1);
$m->get($url);
$m->form_number(2);
$m->click();
my $response = $m->res();
my $filename = $response->filename;

if (! open ( FOUT, ">$filename" ) ) {
    die("Could not create file: $!" );
}
print( FOUT $m->response->content() );
close( FOUT );