The lego movie was good because it wasn’t about the legos though. It used legos as a medium for telling a really heartfelt story about a father and son.
If they do that with Minecraft, fantastic. I’m just not expecting it in the slightest.
It also used nothing but lego pieces and had overall amazing animation, complete with the limited movement of lego figures accounted for.
Also because a lot of us played with Legos as kids and the movie properly captured the nostalgic feeling of playing with Legos.