I agree, I hate that. The nuts and bolts don't matter, bad service is bad service, but in case you're just curious, the reason that most often happens is due to

I agree, I hate that. The nuts and bolts don't matter, bad service is bad service, but in case you're just curious, the reason that most often happens is due to their StarzPlay agreement. A lot of the decent newer movies on their service come from their contract with Starz to stream any of the movies currently playing on that network. Well, Starz only gets movies for a certain period (same as any other TV network). So when the run is over on Starz, it's removed from netflix as well. This isn't the entire story, but I've found 9/10 of the movies that are removed from my instant queue are because of this.