An Indulgent 10 Disc Boxset: Marvel Cinematic Universe: Phase One - Avengers Assembled
Do you suppose that they pulled a George Lucas and went back and made stupid changes to all the movies? Probably not.
https://pjmedia.com/lifestyle/2012/7/11/an-indulgent-10-disc-boxset-marvel-cinematic-universe-phase-one-avengers-assembled/