Cast & crew
Breaking Ground: Broken Circle/Spiral Hill (2011)
Directed by Nancy Holt, Theo Tegelaers Written by Robert Smithson
Cast
| Robert Smithson | Stitch (Voice) |
| Huib Haye van der Werf | Stitch (Voice) |
Crew
| Nancy Holt | Cinematography |
| Benito Strangio | Cinematography |
| Nancy Holt | Director |
| Theo Tegelaers | Director |
| Robert Smithson | Writer |
| Walter Stokman | Editor |
| Carlijn Diesfeldt | Executive Producer |
| Rik Meier | Sound Recordist |
| Jeroen Goeijers | Sound Editor |
| Benito Strangio | Colorist |