Continuity mistake: After Dumbledore gives Newt the card for the safe house in Paris, they teleport to a bridge where they continue talking. Dumbledore then tells Newt why he likes him so much, and in the side shots, Newt is shown holding the card up. When it cuts to angles from behind Dumbledore's shoulders, his arm and hand are much lower with the card and his head turned in a different position. (00:20:35)
Continuity mistake: At Hogwarts when Dumbledore is asking a student what his 3 mistakes where, the student is backing up with his wand down by his stomach. Right before Dumbledore shoots a spell at him, the angle changes and suddenly the student has his hand extended out in front of him, pointing his wand at Dumbledore. (01:02:00)
Answer: She would stand with them to oppose Grindelwald and possibly hopes that Creedence can somehow be saved.