But the new filing said that during firearm training for the film, the movie’s armorer, Hannah Gutierrez-Reed, had told Mr. Baldwin that “it was her job to check the gun — not his.” That instruction was similar to what he had been told before, it said. (Asked for comment, a lawyer for Ms. Gutierrez-Reed said he was reviewing the filing.)“An actor cannot rule that a gun is safe,” the filing said. “That is the responsibility of other people on the set.”And while a lawsuit filed by Serge Svetnoy, the film’s gaffer, claimed that the movie’s producers had “declined requests for weapons training days,” and Ms. Gutierrez-Reed said that Mr. Baldwin had failed to attend “cross draw” training, Mr. Baldwin’s filing says that he had inquired about lessons about a month before he showed up on set and that he had training once he had arrived.The demand also claims that Mamie Mitchell, the script supervisor, had told Mr. Baldwin shortly after the fatal shooting, “You realize you’re not responsible for any of what happened in there, don’t you?” Ms. Mitchell is now suing Mr. Baldwin and other producers, blaming him for failing to check whether the gun he was handling was loaded. A lawyer for Ms. Mitchell, Gloria Allred, said in a statement, “Whatever Ms. Mitchell said immediately after the shooting when she was in a state of shock, and whatever Mr. Baldwin said immediately after the shooting, will be testified to at the trial in our civil case.” She said that the filing was “simply one more attempt by Mr. Baldwin to avoid responsibility for what he did.”In the filing, Mr. Baldwin and his lawyer go so far as to publish private text correspondence between Mr. Baldwin and Mr. Hutchins. The texts show Mr. Baldwin checking whether Mr. Hutchins still wanted to continue their conversations given the possible legal sensitivities, and Mr. Hutchins agreeing to continue communicating despite, according to the texts, the likely wishes of his legal advisers and press representative.