Wikipedia pages about Samuel L. Jackson and Superman. The first source details Jackson's impressive career, beginning with his early theater work and later his rise to prominence in films like Pulp Fiction. The source highlights his collaborations with directors like Spike Lee and Quentin Tarantino, and his prolific career in general, making him one of the highest-grossing actors of all time. The second source is an overview of Superman's history, from his creation by Jerry Siegel and Joe Shuster to his various adaptations in film, television, and other media. It also touches upon Superman's cultural significance and his enduring impact on the superhero archetype.