Enjoyed the movie, but it wasn't great. It lacked a sense of fun and adventure. Some questions:

Can Credence really be Dumbledore's brother? He would have been born after Albus's father was in Azkaban and after his mother was dead. Is Grindelwald lying to Credence? Could it somehow be that Ariana's obscurus has found a new host in Credence, but that Credence isn't actually his brother?

Also, there is some buzz about mcgonagall being in hogwarts, when she was born in 1935 according to canon. Is that an error?