AI in movies and AI in real life are not the same things you seem confused. AI is a field of research, which includes LLMs, that has existed since the very birth of computer science in the 40s. LLMs can objectively create new things, that is quite literally their whole purpose. Have you even used one for more than five minutes? I have been working with them in a professional capacity for the better part of 4 years now.
AI in movies and AI in real life are not the same things you seem confused. AI is a field of research, which includes LLMs, that has existed since the very birth of computer science in the 40s. LLMs can objectively create new things, that is quite literally their whole purpose. Have you even used one for more than five minutes? I have been working with them in a professional capacity for the better part of 4 years now.