AI also is said to be a major point of contention in talks between the SAG-AFTRA and the AMPTP.
The executive order, however, did not address copyright, and other action will be left to Congress.
There already is disagreement over details.

The Copyright Office also is in the midst of gathering public comment on its approach to AI.
A number of authors, including John Grisham and George R.R.
That is the standard by which courts weigh whether the unauthorized use of a copyrighted work is legal.
As such, courts weigh a series of factors in determining whether a use is fair.
Some AI companies already are doing that.
OpenAI, for instance, has a licensing agreement with Shutterstock.
An alternative proposal is for content owners to opt-out of having their protected works used in training models.
Yet the MPA warned that such methods may prove to be unworkable.
Such record-keeping may be necessary anyway in the event of litigation, they wrote.
But with AI, the studios want flexibility.
Such a requirement would hinder creative freedom, the MPAs team wrote.