"What Drives Us" is a documentary about a musicians life on the road going from town to town, gig to gig trying to make a living and get famous of course...and get laid. It's clear that Dave loves music, the people who make it and the life, no matter how sordid it is. The film is chocked full of rock stars who haven't had to ride in a van for a long time but boy do they have the stories. Check out Steven Tyler recalling a night in Detroit. It's now on Amazon Prime. Here's a review. https://www.nme.com/reviews/film-reviews/what-drives-us-review-dave-grohl-2929680