American International Pictures crosses its highly successful women-in-prison genre with the 1950s classic The Defiant Ones for another drive-in hit filmed, as usual, in the Philippines. Exploitation queen Pam Grier and Margaret Markov have the title roles; chained together, they bust out of a Manila hellhole and go on the lam disguised as nuns. Jonathan Demme (The Silence of the Lambs) co-wrote the script.