The family of Russian journalist Anna Politkovskaya has said an upcoming film inspired by her life is “grossly inaccurate” and misrepresents her work in a statement sent to journalists Tuesday afternoon.

In the statement, the family said it is “very concerned” by the film’s preliminary script, which they say contains “significant inaccuracies” and misrepresents Anna’s life, work, and family.

The film, previously titled Mother Russia, tells Anna’s story as a world-renowned journalist and human rights activist who went from being a local print journalist to braving the Chechen killing fields and exposing Russian state corruption under Vladimir Putin.

Anna refused to give up reporting on the war in Chechnya despite numerous acts of intimidation and violence, including being poisoned. She was ultimately murdered in the elevator of her block of flats, and it remains unclear who paid for the contract killing.

BAFTA-nominee Maxine Peake (The Village) plays Anna in the biopic.