Emma Watson was "genuinely terrified" by the war scenes in 'Harry Potter and the Deathly Hallows: Part 2'.
The film series climaxes with a huge battle between titular wizard Harry (Daniel Radcliffe) and his Hogwarts cohorts against evil Lord Voldemort (Ralph Fiennes) and his followers the Death Eaters, and the actress says the special effects were so realistic, most of the cast were in shock.