Keep It Up, Jack!
- 1975 film
Cast & crew credits
| Mark Jones | Jack |
| Sue Longhurst | Actor |
| Derek Ford | Writer |
| Alan Selwyn | Writer |
| Derek Ford | Director |
| Michael L. Green | Producer |
| Alan Selwyn | Associate Producer |
| Mark Jones | Jack |
| Sue Longhurst | Actor |
| Derek Ford | Writer |
| Alan Selwyn | Writer |
| Derek Ford | Director |
| Michael L. Green | Producer |
| Alan Selwyn | Associate Producer |