There isn't that many people posting on Lemmy as a whole, so people will follow where the content gets posted.

!newcommunities@lemmy.world helps to promote new communities

Edit:

!movies@lemm.ee and !showsandmovies@lemm.ee replaced !moviesandtv@lemm.ee

For the details on the powertrip: https://lemmy.dbzer0.com/post/29606682