This question must be in context with your other thread where you want to filter movies by MPAA rating via a smart playlist?
If the movie rating on the scraper site is incorrect, and you're using a community-maintained site such as themoviedb.org, you can register for an account there and make the correction. After your change is reflected on the site, you can rescrape to pick up the new info. However, if the scraping site you're using offers no way for you to readily make/request a correction, or if you simply don't agree with the film's official MPAA rating (based on your personal criteria), you can create an nfo file for that film and provide an override rating.
Create a
movie-filename.nfo file with the following content and place it in the same folder as the
movie-filename.xxx movie file:
Code:
<movie>
<title>The Title of the Movie</title>
<mpaa>Rated PG-13</mpaa>
</movie>
http://url-of-the-movie-page-at-the-scraper-site
Remove the movie from the library (but don't agree to deleting the actual movie file) and then rescan for new content. It should now re-add the movie to your library using the info scraped from the movie page URL you specified, but overriding the MPAA rating with the value you specified in the nfo.
For more information on nfo files, see this wiki article:
http://wiki.xbmc.org/index.php?title=Imp...rt_library