The Superman movies, particularly those in the Christopher Reeve era, did not traditionally feature post-credits scenes. This was largely due to the filmmaking conventions of the time. The concept of teasing future installments or offering a final gag after the credits roll wasn't yet a staple in superhero or action films. Therefore, viewers who stayed until the end of the credits were only treated to the names of the cast and crew who brought the film to life, rather than a bonus scene.
