Testing the filters against live data
The broken age filter looked fine in the app, because the results it returned were plausible. We found it by querying TMDB, the film database behind Cinemate, directly. It returned 20,001 UK films with the U filter and 20,001 without it. Sending the certification country brought the U-rated search down to 1,078. The TV filter had a second fault, a “greater than” that should have been “less than”, and fixing it cut a 4,456-show result to 651.