Talking about her movie, if we somehow get Edgar Wright to direct it then I'm sure it'll be an absolute hit.
I say this after reading a post on Twitter. He pointed out how some of Edgar Wright's concepts from his movie "Scott Pilgrim vs The World" can be used to show Zatanna's magic.
I know EW used it to give a comic book feel but I think it can also be used for Zatanna's spell. That way it'll be easier for the audience to read her spells instead making her speak gibberish and have everyone be confused.
I actually saw something similar be used in Catwoman (2018) #19 by Joelle jones.
See how the words form in the air. We can have that for a few frames to help the audience. Maybe keep it backwards to reward the comic book readers.
It's better than how Justice league Action did.