用英语介绍一下世界上著名的纪录片电影？

Cure insomnia " (Cure for insomnia): (5220 87 hours of minutes) , a volume in 1987 USA movies, in the entire edition having been in progress to February 3 on January 31 in 1987 shows. The film content is that one people reads poetry and song aloud in there mainly. (Estimate that film has the curative effect ~ ~ to it is said that the advance notice that time short film all has 45 minutes long very much indeed to insomnia looking at this)!