Clint Eastwood plans to produce and direct a feature film about another American icon, astronaut Neil Armstrong, the first man to walk on the moon.

The actor-director said he has acquired the rights to a forthcoming authorized biography on Armstrong by noted historian James R. Hansen. Warner Bros. Pictures will release the film, the studio announced Wednesday.

Eastwood, who produced, directed and co-starred in 2001's "Space Cowboys," doesn't plan to star in the Armstrong biopic, but he expects audience interest will still be high.

"Millions of people watched Neil Armstrong step out onto the moon's surface and millions more have seen those images since the event happened," Eastwood said. "However, Armstrong himself is a very enigmatic figure."