As a film can only be added to a single list, it probably makes more sense to disable or grey out the list titles for lists that the film is already in.
I have films on multiple lists now, and I'm glad I can have them that way, I hope that won't be changing, I just wish I could see which lists I've already added them to. Thanks for the response, and I'm looking forward to the improvements. :)
I agree. I also feel like at least an initial import of IMDB/etc lists should be included with a free Letterboxd account, and syncing should be a pro feature. I understand that it is a resource-intensive process, but allowing each new user the chance to import (to a fairly new service) their information from a service they've probably been using for years (like IMDB) would be a simple and effective way to allow them to reach the full potential of this service as swiftly as possible, decreasing the likelihood of people saying 'I'd have to add all couple thousand of these films individually, the heck with that' and leaving before they've really begun. List syncing would also encourage some of those people to continue to use both (since we know most people won't actually stop using IMDB/etc anyway).
We now have support for browsing by country and language. As some films have multiple languages listed, browsing French-language films (https://letterboxd.com/films/language/french/ as an example) will show English-language films as well (where those films have portions of dialog in French). We’d like to improve this in the future to be able to show films whose principal language is French.
while there is a great deal of information available on Letterboxd, there a great deal more available on both TVDB and IMDB. I completely understand wanting to preserve a clean set of fairly simple information, but what language a movie is in seems to be one of those important ones. As it stands, in order to see a film's language I must visit the IMDB page from the Letterboxd page, and that feels very unnecessary.
On a similar note, how does a film get classified as 'foreign'? Apparently I haven't watched any, according to your filters, even though I know for a fact several of them aren't even in English, much less domestically produced.