What is the fine-grained topic of the following text: The 1970 documentary film Gimme Shelter, directed by Albert and David Maysles and Charlotte Zwerin, chronicling the last weeks of the Stones’ 1969 US tour and culminating in the disastrous Altamont Free Concert, took its name from the song. Only return the topic.
The 1970 documentary film Gimme Shelter about the Rolling Stones' 1969 US tour.