Sly may not be a deep dive into Sylvester Stallone's career but it's an emotional and engaging look into the life and career of a superstar on his own terms. Even if it can't cover everything it still hits the major milestones (and Expendables) whilst still having time for Stallone to acknowledge his own flaws and regrets.
There've been so many jokes about Stallone being an unintelligible muscle man so it's nice to have this to set the record straight. He's a really insightful actor who's put so much of himself in his movies. There are a few times Stallone's decisions and refusal to back down created some of cinema's best moments as well as some missteps he acknowledges which shows how far he's come.
Just as engaging as the anecdotes about filmmaking and how Rocky in particular was created are his observations about life. The pain, the loss and the speed it goes by are all discussed in a very frank manner with some heavy yet beautiful quotes that remind you Sly has a real way with words, in life and on the page.
There's also a great selection of interviews with other people in between Stallone's discussions, some who make perfect sense including Frank Stallone just generally being the best and Arnold Schwarzenegger getting to offer some funny stories about their infamous rivalry as well as others who are just cool to see (Quentin Tarantino!).
Thom Zimny's direction is great overall. Swapping effortlessly between the interviews and archive footage throughout with a generally nice vibe that means you don't want it to end. It only briefly falters in a few moments where it distracts from Stallone's openness by shaking the camera too much in an attempt to get as close as possible.