Now 88 years old, he’s the subject of the documentary With Great Power: The Stan Lee Story, which will be playing at the Slamdance Film Festival in Park City, Utah, on Jan. 24. The film covers Lee’s life, starting from his Depression-era childhood, and features interviews with Tobey Maguire, Kirsten Dunst, Patrick Stewart, Samuel L. Jackson, Nicolas Cage, and Jon Favreau.