Adava Kedavra:
Book: You cannot block Adava kedavra with any regular means
Movies: Press X to block. Mash X repeatedly to form priori incantem all the time.
Voldemort’s tatics:
Book: Spams the Adava kedavra spell casually just because it one hit kills before getting dunked on
Movie: Voldy uses every magical tatic in his arnesal to just beat up some old wizard and later a teenager.
The Qudditch world cup:
Book: Shows everything even the mascot war and the reactions
Movie: “Nah, let’s just skip to the part when the death eaters burned the entire camp cause why not?”
HBP:
Book: Potter must uncover the lore of voldy and face life challenges as the dark lord’s grip clutches the wizarding world even more
Movie: Wizarding Romcom
Time turners:
Book: Get sucked into some time whirlpool into a maxinum of several hours
Movie: Same as book but only scrolling a youtube video backwards
Cursed Child: The way it works is cursed