Pretty darn good. Recommend you see it, even if you never cared about John Belushi before today.
Its mostly audio clips with still photos, and these neat little cartoons drawn to match the audio clips. They never do the standard "guy in chair talking to invisible interviewer" and thats a nice change of pace.
Loads of never before seen photos and videos, and never heard audio. Brutal honest look at his whole life, not just good or bad. The documentary shares as much of his insights as it possibly can, and also the opinions and stories of friends & coworkers. It never glorifies or vilifies him which is what a good documentary is all about. Highly recommended.
Review of Belushi
