Upcoming Attack on Titan Movie Will Recap the First Three Seasons

Funimation will release a compilation film that will tackle the show’s first three seasons, before Attack on Titan Season 4 kicks off.

IGN - Attack on Titan Final Season: The Final Chapters, Special

Attack on Titan recap: the entire story so far before Final Season

Attack on Titan season 3 to premiere in July 2018 - Polygon

Attack on Titan Season 4 Recap - What Happened Before Part 2

Attack on Titan: The Final Season (Final Edition)': Part 1 Will Be

Watch Attack on Titan - Crunchyroll

Review: 'Attack On Titan: The Final Chapters Part 2

Attack On Titan' to conclude in 2023 with part 3 of final season

Attack on Titan - Wikipedia