Hollywood movies such as the Terminator series, where the AIs aren’t significantly smarter than humans. When the intelligence differential is large enough, you get not a battle but a slaughter. So far, we humans have driven eight out of eleven elephant species extinct, and killed off the vast majority of the remaining three. If all world governments made a coordinated effort to exterminate the remaining elephants, it would be relatively quick and easy. I think we can confidently rest assured that if a superintelligent AI decides to exterminate humanity, it will be even quicker.