In the books, its fairly consistent that no other spell can block it directly, but dodging is always an option and Dumbledore interposes other stuff several times, as /u/InquisitorCOC pointed out. As for the movies, Id just as soon say that green light doesnt always mean AK.
Can you block Avada Kedavra with Protego?
Well, really Protego diabolica can act as shield against Avada Kedavra, because when Alastor said about killing curse, Dumbledore explained harry that priori incantatem can be succesful way to stop killing curse, because it becomes a clash of magics (It doesnt matter spell, only power).
Which spell can block Avada Kedavra?
The Killing Curse The Killing Curse is a spell that causes instantaneous death and is one of the three Unforgivable Curses. Its incantation is Avada Kedavra. The only known counter-spell is sacrificial protection, which uses the magic of love. However, one may dodge the green bolt or block it with a physical barrier.
Can the Unforgivable Curses be blocked?
The Killing Curse has no counter-curse and cannot be blocked by most magical means.
What is the deadliest spell in Harry Potter?
Avada Kedavra Some would say theres no spell worse than Avada Kedavra, the Killing Curse that Voldemort used so indiscriminately.
What spell killed Snape?
Sectumsempra Sectumsempra was a curse invented by Professor Severus Snape that lacerates the target and causes severe haemorrhaging. Snape created it as a student of Hogwarts, with the intention of using it against his enemies, likely including the Marauders, and it became one of his specialities.
What is Draco Malfoys favorite color?
Despite an entire wardrobe to the contrary, Dracos favourite colour is neither green nor black. Since his second year in a bookshop, its been red.