Top 10 R-Rated Movies of the 1970s

1 One Flew Over the Cuckoos Nest

2 A Clockwork Orange

3 The Godfather: Part II

4 Taxi Driver

5 Apocalypse Now

6 The Godfather

7 The Exorcist

8 The Deer Hunter

9 Halloween

10 Alien

The Contenders

11 Deliverance

12 Mean Streets

13 Network