Cooties (2014)

When a substitute teacher goes to work at a school to make money while he works on his book, the day does not go how he imagined. One of the students attacks another which launches a series of events at the school which just get worse and worse.

I give this movie a 4 out of 5.

Starring Elijah Wood (Lord of the Rings movies, The Good Son, L.A. Rush, Come to Daddy) as Clint, Rainn Wilson (The Office, Super, Juno, Blackbird) as Wade, Alison Pill (Scott Pilgrim vs. the World, Goon, Milk, Dan in Real Life) as Lucy, Jack McBrayer (Wreck-It Ralph, 30 Rock, Forgetting Sarah Marshall, Talladega Knights: The Ballad of Ricky Bobby) as Tracy, Leigh Whannell (Saw movies, Upgrade, Insidious movies, Aquaman) as Doug, Nasim Pedrad (Despicable Me 2, No Strings Attached, Saturdy Night Live, Aladdin) as Rebekkah, Ian Brennan (Glee, Scream Queens, LA to Vegas, One Hit Wonders) as Vice Principal Sims, Jorge Garcia (Lost, The Wedding Ringer, The Ridiculous six, Alcatraz) as Rick, Cooper Roth (Back in the Game, The Goldbergs, The Gifted, Unsolved: The Murders of Tupac and of the Notorious B.I.G.) as Patriot, Miles Elliot (The Amazing Spider-Man, Camp, The Thining, Holyland) as Dink, Morgan Lily (2012, Flipped, X-Man: First Class, He' s Just Not That Into You) as Tamra, Sunny May Allison (Ouija, Insight, Stuntman, The Massively Mixed-Up Middle School Mystery) as Shelly, Armani Jackson (Ready Player One, The Last Witch Hunter, Christmas All Over Again, Little Boxes) as Calvin, Peter Kwong (Big Trouble in Little China, The Golden Child, Gleaming the Cub, Love Sanchez) as Mr. Hatachi and Kate Flannery (The Office, Trick, OK K.O.! Let' s Be Heroes, Stuck) as Charman.

https://www.imdb.com/title/tt2490326/