As the memo, which was sent to Peter Roth, the president of Warner Brothers, among others, noted, “greater numbers” of minority candidates were welcome, “as are candidates whose religious or sexual orientation could provide us with voices that are underrepresented.”

The memo did not include a commitment to hire, but Mr. Abrams added that he would be working on diversifying the staff at Bad Robot as well, immediately. He explained in the memo that his choice was not about quotas or political correctness but simply about assuring that “the pool of talent we choose from is as rich and representative as possible.”

“It feels like that rare and wonderful thing where the morally right step is a great creative move as well,” he wrote. (The memo was first reported by The Wall Street Journal.)