Diane Foley said it was upsetting that the film, which stars Susan Sarandon, seeks to profit from a personal tragedy.
A former hostage said he and victims' family members oppose the possibility.
"We Americans can do better, and God willing, we will ... protect our citizens and help them when such a situation happens," she said.
The Foleys and the other families have every right to be skeptical that these changes to government policy announced by the White House will actually happen and every right to question whether news organizations will live up to the new culture of safety that we are trying to establish. As always, we need to live up to the promises.
Diane Foley, the mother of journalist James Foley who was beheaded by ISIS in August, told CNN's Anderson Cooper Thursday
She called on all world leaders, including President Obama, to work together to ensure that no more lives are taken. The
"We know Jimmy's free," John Foley replied. "He's finally free. And we know he's in God's hands...and we know he's in heaven
She also referenced the other hostages still held by ISIS, including Foley's fellow journalist Steven Sotloff, who was identified