Hindi Nahahati ang Langit (English: An Indivisible Heaven) is a 1985 Filipino romantic drama film directed by Mike de Leon from a screenplay written by Mia A. Concio, based on the Tagalog Klasiks serial of the same name by Nerissa G. Cabral. The film stars Christopher de Leon and Lorna Tolentino playing the respective roles of stepsiblings Noel and Melody. Dina Bonnevie and Edu Manzano play the roles of Noel and Melody's respective spouses, Cynthia and Ronald.

Produced by Vanguard Films, under the helm of Charo Santos-Concio and Simon C. Ongpin, the film was theatrically released on March 7, 1985. It was later loosely adapted into a TV series by ABS-CBN as Walang Kapalit, aired from April 23 to August 31, 2007.