Already, some upcoming films have had their release plans modified as a result of the SAG-AFTRA strike. The Helen Mirren drama “White Bird” and A24’s Julio Torres comedy “Problemista” were supposed to launch in August and are now without an official release date, while “Challengers,” a tennis romance starring Zendaya, on Friday abdicated its prestigious slot as the opening-night title at the Venice Film Festival, which begins Aug. 30. That film, like the Emma Stone comedy “Poor Things,” had been set for theatrical release in September in order to capitalize on a starry press push at Venice. Now “Challengers” has moved to April 2024, according to Deadline.

Venice and the Toronto International Film Festival will announce their full lineups next week, and though those slates have the chance to build on the movie-loving momentum offered by “Barbenheimer” weekend, many wonder if they’ll be lacking the starry prestige titles studios normally send there. “If…