I haven’t seen the Fantastic Beasts films. David Yates’ Doctor Who is a bullet I’m glad we dodged (supposedly it really did come close to happening), so I’m not keen on a stand-in. Are the movies any good? I do plan on seeing them eventually.
The first Fantastic Beasts film is actually one of my favorite movies in general.
It works good as a stand-alone film, so you could watch it, without bothering with its sequel.