This is unimaginably tragic.
The team did release a statement on the matter, though (below):
Thank youuuu, Comic-Con!!
While we delightfully divulged the deets of Breaking Dawn: Part 2's first seven minutes last week, we're THRILLED to show you the real thing NOW!
Watch the exciting (and sometimes HIGHlarious) beginning to the upcoming blockbuster sparkle above!
Trust us, you don't wanna miss this! Kristen Stewart is killin' it as a vampire!!
UPDATE: Video removed upon request from Summit.