Actor Alec Baldwin is facing an involuntary manslaughter trial for the fatal shooting of cinematographer Halyna Hutchins on the set of the movie "Rust." The pretrial hearing involves discussions on evidence restrictions and arguments that will be presented during the trial, set to start on July 9. Key points of contention include Baldwin's handling of the revolver, his role as a co-producer, and the firearm's functionality. Prosecutors argue that Baldwin's negligence led to the incident, while Baldwin maintains the shooting was accidental. The trial involves crucial witnesses, firearms experts, investigators, and the film's armorer, Hannah Gutierrez-Reed, who was convicted of involuntary manslaughter as well.