The story is the thing the actor is an accessory.
I grant you a great actor can sort of save a bad story. However, it’s not common. Probably not worth being your investment on. Anyway Hollyweird has lost the ability to write a good story! I doubt if AI can save them there.
Great actors can illuminate a great story, too, and make it even more powerful.
But I’ll agree that AI can’t help with the almost complete dearth of creativity in Hollywood today.