Version 18.104.22.168804 - Spring Season 2018
This userscript will add a link to Myanimelist.net on a known movie/show.
Disclaimer: I can only provide limited support as I'm not well versed in JS. It will initially set the data which might take a second, afterwards it shouldn't be noticeable. I'm not sure what the best way is to keep the index updated, for now I'll push a season indicator to force an update.
Known entries (index) can be found at http://txm.huere.net.