Chalkwas shot in documentary style with actors improvising most of their lines.

“粉笔”被用纪实的手法拍摄，演员们大量的即时发挥。

youdao

He has his own unique style of art: documentary-style frame, impromptu performances, the rhythm of real life, and the theme of realism.

他拥有属于自己的独特的艺术创作风格：纪录片式的框架，即兴式的表演，真实生活的节奏，和现实主义的主题。

youdao

Writer-director Cherien Dabis shot "Amreeka" in a gritty documentary style that reflects the often grim reality of the characters' situation.

WSJ: WSJ Film Review: All About Steve, Amreeka, Extract

Each short film, shot in a documentary style, explores a different theme.

FORBES: Magazine Article

The film is done in an engaging pseudo-documentary style, with traditional scenes interspersed with scenes of actors talking directly to the camera about themselves and their relationships.

FORBES: Ed Burns And His Latest Film, "Newlyweds"