Just be aware they don't have the movie rights to the Spider-Man, X-Men, and Fantastic Four franchises because Marvel sold them off before being aquired by DIS. All they really have is the Avengers line-up. But just imagine if they owned the rights to everything.
While it is true that options are going to dilute the shares, a split or buy back doesn't make the situation any worse. In fact buy backs have the opposite effect with respect to dilution, assuming they retire the repurchased shares. There isn't a publicly traded company out there that doesn't have convertibles to stock, so it's already a given that dilution can happen at any time.