Hi enzo94,

Since 6 month, I have made a lot of contribution on TMDB and honestly this website is one of the best websites I have seen about the contribution, it’s very easy to do one (I also made contribution on TVDB, Music Brainz, Fanart TV and The Audio DB and these are less practice, particularly TVDB).

Through all these contributions, I could see a little bit the database quality. On movies, it's almost perfect. I only saw a few duplicated movies (only 2 of more than 400 movies I have checked) and some french titles in error (2 or 3). But about the actor, I saw more duplicates (about 10% of all the actor I have edited).

Thanks for the compliments. We've worked very hard to make TMDb easy to use yet powerful at the same time. While it has been an incredible effort to build the infrastructure and service, the real value comes from users like yourself taking the time to update and fix data. So thanks for taking the time.

My suggestion is to require an id (imdb, freebase id, freebase mid or TV Rage id) when someone create an actor

Unfortunately, requiring data like that while trying to add cast data (where you create a person) would make it quite cumbersome and likely to inhibit a lot of contributions. It's a slippery slope of requiring data and not.

OK that's what I thought. Request id make the editing cast work heavier. 10% actors duplicated is not so bad and it is sure that the first purpose of TMDB is to manage correctly the movie, so there is less requirements on the actor