| Original title | Im Nest der gelben Viper - Das FBI schlägt zu |
|---|---|
| Danish title | De gule hugorme |
| Leikstjórn | Alfredo Medori, Wolfgang Schleif |
| Land | Tyskland, Italien |
| Domestic distribution | Gloria |
| Danish theatrical release | 18.06.1969 |
| Cinemas | Nørreport Bio |
Companies |
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| Production company | Castello Film |
| Domestic distribution | Gloria |
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Instruktion |
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| Instruktion | Alfredo Medori |
| Instruktion | Wolfgang Schleif |
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