The main character of the movie, Alita, looks like a doll, with manga eyes and a cartoon expression. To achieve this without making it look too unrealistic, a combination of live action and computer-generated imagery was used. Although the film’s fate hinges on how audiences will react to its protagonist, Rodriguez focuses on working through the tangles in a way that makes sense to him and Cameron. Rodriguez explains the process in an interview with Irish Times:
“We were worried about how it would all fit together. We still insist that she’s not fully human. Because even a few years ago we couldn’t make her. She looks like her… I’m not.” not making movies for Fox. I make movies for Jim. Jim and I are friends. So if we liked it, that’s what we did. I feel like I have my own Terminator to protect me. It’s pretty much like making an indie film. “
In addition to having access to the right kind of technology that allows Alita to appear semi-CGI, actress Rosa Salazar (playing Alita) was instrumental in bringing her character to life on the big screen. Salazar was able to portray Alita’s complex emotions in a way that viewers can identify, despite the fact that she’s not fully human.
“Alita: Battle Angel” features futuristic cyborg suits, cool weapons like the Damascus blade, and extreme sports like Motorball. However, Alita is the beating heart of the film, and it is her relationships with the other characters that give the cyberpunk story an emotional edge. Rodriguez delivered on what Cameron did best: using technology to create fantasy worlds that would seem empty without characters worth rooting for.
https://www.slashfilm.com/1009653/james-cameron-was-the-only-audience-alita-battle-angel-set-out-to-impress/ Battle Angel poses to impress