Regarding the movies of the Infinity Saga (23 movie so far), which ones actually show an Infinity stone or its container as part of the plot? Not counting mid-credits or post-credits references.
Captain America: The First Avenger and The Avengers have the Tesseract (Space stone).
Thor: The Dark World for the Aether (Reality stone).
Guardians of the Galaxy for the Power stone.
Avengers: Age of Ultron for Loki's scepter (Mind stone).
Doctor Strange for the Eye of Agamotto (Time stone).
And obviously, Avengers: Infinity War and Avengers: Endgame.