You asked:

Who wrote the screenplay for Altered States?

  • Paddy Chayefsky
    Paddy Chayefsky

    Sidney Aaron Chayefski, known as Paddy Chayefsky, the distinguished American playwright and novelist who made a transition from the golden age of American live television in the 1950s to a successful career as a Hollywood screenwriter

  • tk10publ tk10canl

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