John Carter...I want this film to be more zany
Not an expert, but from what I've read, Carter is about as uncomical a character as you can get.
Animation does lend itself to the Tharks, thoats, & such, tho. It also makes depicting Burroughs' four-handed Thark fighting style practical, which could be interesting.
And for the record, it's Warner Bros.; the abbreviation is the correct form.
Do I understand "Uncle Remus" meant to replace "Song of the South"? It looks like it's still going to generate backlash (=OTL) from using minstrel-based songs & Negro stereotypes.
In ref the Superman film, does he get the powers from the serials, including flight, heat vision, & so forth, or stick to the original comics-level ones?
In ref Batman, presuming this is aimed mainly at kids, does he take the Golden Age approach to villains (throwing them off buildings
)? (I have to think the film censors won't allow that...) And does he have Robin aboard yet? (That would seem to be better for attracting a kid audience.)
I'm opposed to origin stories, frankly, as unnecessary: you've got established audiences for both characters, numbering in the millions of kids (for Supes) & hundreds of thousands (for Bats).
One character that would be kid- & animation-friendly would be Captain Marvel--if you can get past the DC-Fawcett lawsuit issues...