That's great can't wait.
As for the ratings I mean I mean the regional ratings. Like in the USA we have MPAA (G, PG, R, etc), Mexico has RTC (AA, A, B, C, D, etc), and so forth see link below. Just about every country has something different. As for "critic" or social star ratings I could care less what other people think about movies.
If you are planning to allow the end user to apply a 5 star rating to each movie that would be awesome as rating my own movies does matter to me, where as other peoples opinions of movies doesn't.
https://en.wikipedia.org/wiki/Motion_pi ... ing_system