Compare watchlists -- find movies that are on multiple user's watchlists

My wife and I recently migrated to Letterboxd for the one and only reason that they have this feature:

Compare watchlists in order to, amongst others, find movies that we both haven't watched yet and would both like to watch.

It has been suuuuper handy and saved us a ton of time. Now we don't need to discuss which movie we watch. We just pick the movie with the highest rating that is in both our watchlist.

But, Letterboxd is not so great for other reasons. Mostly, IMDb's rating is more trustworthy. We would like to come back. But this feature is a must!

Please integrate this feature. It can't be so difficult. And if you integrate it, please make it so that we can actually compare the watchlists of unlimited users to make finding a movie for movie night easier! It would be great if IMDb can list the movies sorted by (first) most people who have the movie in their watchlist and (second) by IMDb rating. That would make movie night that much easier!