| Year | Title | Role | Notes |
| 1961 | The Young Savages | Anthony Aposto/Rocco | Credited as Neil Nephew |
| 1962 | Panic in Year Zero! | Andy | Credited as Neil Nephew |
| 1970 | The Rebel Rousers | Rebel | Credited as Neil Burstyn |
| 1970 | Alex in Wonderland | Norman | Credited as Neil Burstyn |