 The overarching philosophical themes of the film include self @-@ identity in a technologically advanced world . The music , composed by Kenji Kawai , included an ancient Japanese language in a wedding song that serves as a key piece of music leading up to the climax of the movie . Widely considered one of the greatest anime films of all time , critics particularly praised its visuals , which at the time were the most effective synthesis of traditional cel animation and CG animation . It has served as inspiration for filmmakers such as the Wachowskis . 
 The overarching philosophical themes of the film include self @-@ identity in a technologically advanced world . The music , composed by Kenji Kawai , included an ancient Japanese language in a wedding song <a href='null_relcl' title='1'><mark>that</mark></a><a href='uninflect' title='2'><mark>serves</mark></a> as a key piece of music leading up to the climax of the movie . Widely considered one of the greatest anime films of all time , critics particularly praised its visuals , which at the time <a href='uninflect' title='3'><mark>were</mark></a> the most effective synthesis of traditional cel animation and CG animation . It <a href='been_done' title='4'><mark>has</mark></a> served as inspiration for filmmakers such as the Wachowskis . 
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