The producers of Alec Baldwin film Rust have disputed an official report saying they were indifferent to gun safety before an on-set shooting tragedy.
The film's cinematographer was killed and its director injured when a gun held by Baldwin fired last October.
Last month, the New Mexico Environment Department imposed its maximum fine on Rust Movie Productions for "serious and wilful" failures.
But the company has said it "enforced all applicable safety protocols".
In legal documents filed to contest the authority's findings, the firm also said it "did not 'wilfully' violate any safety protocol".
Any actors handling guns received sufficient training, and assistant directors were instructed to hold safety meetings on days when firearms were used, it said.
There was such a meeting on the morning of the shooting that killed Halyna Hutchins and wounded Joel Souza, according the documents.