As September draws to a close, HBO is ushering in the Halloween season with a bevy of scary movies coming to its popular streaming service, HBO Now. Unfortunately, the monthly addition of movies also leads to the monthly subtraction of some popular hits.

Whether you’ve been an early adopter of HBO Now or are just getting on board thanks to the temporary account information of Emmys host Andy Samberg, you’ll probably need to know that the service’s library is subject to monthly changes just like Netflix or Hulu. In October, HBO will be adding some spooky movies to get users in a haunting mood such as “The Purge: Anarchy” and “The Pyramid” coming on Halloween night. Movies like “Dawn of the Dead,” “Gothika” and “Queen of the Damned” will be available throughout the month as well.

Fans of the HBO series “The Leftovers” will no doubt be tuning in to the Season 2 premiere, and comedy fans will have a ball when Amy Schumer drops her stand-up special “Amy Schumer: Live at the Apollo.” Hit movies such as the Oscar-nominated "American Sniper" will  become available to stream as well. If you’re looking for more family-based fare, fear not, HBO Now is still for you. The streaming service will be providing kid-friendly titles such as “Alvin and the Chipmunks,” “Bee Movie,” “Ella Enchanted,” “Happy Feet” and “Shrek.”

Check out an extended list of just some of the popular titles coming to and leaving HBO Now at various dates throughout October.

New Original Programming

  • “El negocio," Season 2 Finale (10/2)
  • “The Leftovers," Season 2 Premiere (10/4)
  • “Magnífica 70," Season 1 Premiere (10/9)
  • “Amy Schumer: Live at the Apollo" (10/17)
  • “Doll & Em," Season 2 Finale (10/18)
  • “How to Dance in Ohio" (10/26)

Saturday Night Movies

  • “American Sniper," 2014 (10/3)
  • “Focus," 2015 (10/10)
  • Taken 3," 2014 (10/17)
  • “Bad Words," 2013 (10/24)
  • “The Purge: Anarchy," 2014 (10/31)
  • “The Pyramid," 2014 (10/31)

Estrenos en Español

  • “El mar y Él," 2014 (10/2)
  • “Juan in a Million," 2012 (10/2)
  • “La juala de oro," 2013 (10/9)
  • “The Poet of Havana," 2015 (10/23)

Notable Films New to HBO Now (Available Oct.)

  • “Blazing Saddles," 1974
  • “Blood Diamond," 2006
  • “Brick," 2005
  • “Burn After Reading," 2008
  • “House on Haunted Hill," 1999
  • “License to Drive," 1988
  • “Little Miss Sunshine," 2006
  • “Lost in Translation," 2003
  • “Magnolia," 1999
  • “Return to House on Haunted Hill," 2007
  • “Revenge of the Nerds," 1984
  • “Rumor Has It," 2005
  • “The Rock," 1996
  • “Trick ‘R Treat," 2007
  • "28 Days," 2000

Notable New Family Films (Available Oct. 1)

  • “Agent Cody Banks 2: Destination London," 2004
  • “Alvin and the Chipmunks," 2007
  • “Bee Movie," 2007
  • “Ella Enchanted," 2004
  • “Happy Feet," 2006
  • “The Kid," 2000
  • “Like Mike," 2002
  • “Like Mike 2: Streetball," 2006
  • “Mrs. Doubtfire," 1993
  • “Rugrats in Paris: The Movie," 2000
  • “Shrek," 2001

Last Chance to Catch

  • “Gravity," 2013 (10/10)
  • “Harry Potter and the Goblet of Fire," 2005 (10/24)

Ending Oct. 31

  • “Agent Cody Banks," 2003
  • “Dawn of the Dead," 2004
  • “Good Night, and Good Luck," 2005
  • “Gothika,” 2003
  • “Escape From L.A.," 1996
  • “A History of Violence," 2005
  • “Jarhead," 2005
  • “Just Friends," 2005
  • “A Million Ways to Die in the West," 2014
  • “Meet the Parents," 2000
  • “Monty Python’s The Meaning of Life," 1983
  • “Queen of the Damned," 2002
  • “The Lake House," 2006
  • “The Skeleton Key," 2005
  • “The Truman Show," 1998
  • “Uptown Girls," 2003
  • “X-Men: The Last Stand," 2006