Thanks for the additional feedback, everyone.
I love the beginning with all the flash frames.
Just one question. Shouldn't Superman be in those credits, too?
Not sure I understand what you mean. There are several shots of Superman in the credits. If you're asking why Superman doesn't get his own mention, that's because he's not real, so he doesn't get his own title card

. Although, it might be funny having one at the end saying "And Clark Kent as Superman".