Star Wars Weekly #20 represents the twentieth installment of the Marvel Star Wars UK comic book series.
Contained within this issue is the latter portion of the narrative that was published in the United States as Star Wars (1977) #10.
- Star Wars: A Long Time Ago... Volume 1: Doomworld
- Star Wars Omnibus: A Long Time Ago.... Volume 1
- Star Wars: The Original Marvel Years Omnibus Vol. 1
- Star Wars Legends Epic Collection: The Original Marvel Years Vol. 1
- "1. Windhölme / Cinnibar / 3: Sparta / 4: The Hollow Crown" - This is the sixth segment of a tale initially featured in Marvel Preview #11, showcasing Star-Lord.
- "The Coming of the Krills!" - The third segment of a narrative originally released in Silver Surfer #2, and included in the Tales of the Watcher short story series.