LOS ANGELES - President Barack Obama often is greeted like a movie star but it's his mother who will be the subject of an upcoming documentary.

"Stanley Ann Dunham: A Most Generous Spirit" would go into production next year, with an expected 2011 release, executive producer Mary Aloe says. It's unknown yet whether it would air on television or appear in theatres.

Aloe said Wednesday she believes the president knows about the project, and the filmmakers are trying to secure an interview with him.

The movie will focus on Dunham - who went by Ann - for her role as the president's mother, raising him in Hawaii and Indonesia. But it will also be about her work with micro-finance, helping women in Third World countries. She died of cancer in 1995 at 52.