Alec Baldwin is looking to have one of the charges of involuntary manslaughter, which could see him jailed for five years, thrown out by a US court.
The actor's lawyers have accused New Mexico prosecutors of committing an "elementary legal error" after charging him under a statute which didn't exist at the time of the fatal Rust shooting.
Baldwin has been charged with two counts of involuntary manslaughter by the Santa Fe District Attorney’s office, over the death of cinematographer Halyna Hutchins.