LOS ANGELES (Reuters) -The Hollywood actors' union on Monday responded to the latest offer from major studios and streaming services, saying the two sides had yet to reach agreement on several items including the use of artificial intelligence. The SAG-AFTRA union said its negotiating committee was determined to secure the best deal and bring a responsible end to a strike that has lasted four months. "We're at a critical point in our industry," the union said in a note to members posted on X, the social media platform formerly known as Twitter.