How much?

Sounds like that's a pretty big chunk of the film: http://nypost.com/2015/11/13/alicia-vikander-is-everywhere-even-in-this-new-bergman-doc/

ngrid Bergman was one of the most irresistible presences the screen ever knew. This adoring documentary makes heavy use of home movies that show how her beauty and warmth needed no makeup, no script, no nothing. Even a smallpox vaccination scar on her shoulder (visible in some picnic footage) seems entrancing.

Director Stig Bjorkman shapes the narrative through Bergman’s letters and diaries (read by rising star Alicia Vikander), as well as interviews with the actress and others. Though Bergman was career-driven and often absent, her children (including Isabella Rossellini and Pia Lindström) remember her with love.

There isn’t a lot here about her films, or great performances, but this is two hours of Ingrid Bergman, much of it rarely seen before. I’m not about to complain.