发行公司：
- BBC Films [英国] (2008) (UK) (theatrical)
- Picturehouse [美国] (2007) (USA) (theatrical)/(2008) (USA) (theatrical)
其他公司：
- Pinewood Shepperton Studios (Pinewood) [英国] movie studio
- AFM Lighting Ltd. [英国] lighting
- ARRI Media [英国] Arriflex D-20 camera provided by
- Audiolink Ltd. walkie talkies
- Casting Collective [英国] extras casting
- Veneration Music score coordination
- Pinewood Studios Ltd. [英国] movie studio
- AFM Lighting Europe s.r.o. [捷克] lighting
- Dragon Digital Intermediate digital intermediate
- Mayflower Studios [英国] ADR recording studio
- Sapex Scripts [英国] post-production services
