Which Side Are You On? Marvel Premier Collection: Civil War is the iconic story by Mark Millar and Steve McNiven that changed the Marvel Universe forever and inspired the blockbuster film Captain America: Civil War . Now, the best-selling book is back in Premier Collection format with a new design, a special introduction from producer Nate Moore, and a foreword written by Steve McNiven himself.

After a tragic incident that takes the lives of innocent people, the Superhero Registration Act divides the superhero community. Captain America joins the resistance, while Iron Man supports the law - and war between the allies begins. "Civil War" poses a moral challenge to all Marvel heroes - from Spider-Man and the X-Men to the Fantastic Four and the New Avengers.

• Screenplay: Mark Millar
• Illustrations: Steve McNiven
• Introduction: Nate Moore
• Foreword: Steve McNiven
• Publisher: Marvel
• Number of pages: 264
• Format: Paperback (Trade Paperback, Premier Collection)
• Dimensions: 6.00" x 8.10"
• Rating: T+
• ISBN: 9781302965549
• Release date: 2025-08-05