Under the Dome lockdown

The Stephen King film adaptation of his book ‘Under the Dome’ is Being shot in North Carolina, and shooting on the set actually forced a school into lockdown!
Apparently filmmakers never informed a school in close proximity that the filming would occur.. Children fled when the realistic gun noises began to sound..

The only thought I have: Thank God none of it was real

And one more thing: I hope the movie is not nearly as long as the book.