In fact a 2001 french movie called Vidocq was "the first major fantasy film to be released that was shot entirely with digital cinematography, using a Sony HDW-F900 CineAlta camera."
https://en.wikipedia.org/wiki/Vidocq_(2001_film)
Of course no one deny Lucas was the most innovative guy around about that kind technology, but AOTC was beaten by the director of Catwoman…! 😉