10 Famous Horror Movie Moments That Were Completely Improvised

As a knowing parody of the all too familiar tropes of the slasher genre, Scream was only too keen to show that sometimes everything doesn't go quite as smoothly for a real killer as for Jason Vorhees or Michael Myers. That means that if the actors fluffed something, director Wes Craven had no qualms about leaving it in the final cut.

Case in point: the mobile phone used by the killers to torment their victims with impromptu slasher trivia quizzes. Actor Skeet Ulrich was aiming to slam the phone down on the counter top, but, thanks to his hands being covered with fake blood, it slipped and smacked into the back of co-star Matthew Lillard's head. Staying in character, Lillard improvised a response and snapped back: "You f*cking hit me with the phone, d*ck!"

It was this take that Craven left in the movie as it, as much as anything that actually was in the script, really showed that the "criminal genius" killers were just a couple of idiot high schoolers with delusions of grandeur.

For good measure, another Lillard ad-lib - when he suddenly blurts at Neve Campbell's Sidney while she's calling the cops on him for murder: "my mom and dad are gonna be soooo mad at me" - also made it into the final cut, helping make the character a more memorable screw-up than originally scripted.