Release Dates
| France | 26 May 1956 | (Cannes Film Festival) |
| Japan | 15 August 1956 | |
| USA | 24 September 1956 | (New York City, New York) |
| Spain | 5 December 1956 | (Madrid) |
| Denmark | 21 December 1956 | |
| Sweden | 21 January 1957 | |
| Portugal | 22 January 1957 | |
| Finland | 13 September 1957 | |
| Turkey | October 1957 | |
| Hungary | 31 October 1961 | (TV premiere) |
| Portugal | 15 June 2010 | (Cinemateca Portuguesa) |
Also Known As (AKA)
| Belgium (TV title) (Flemish title) | De wereld der stilte |
| Bulgaria (Bulgarian title) | Светът на мълчанието |
| Brazil | O Mundo Silencioso |
| East Germany | Die Welt des Schweigens |
| Denmark | Den tavse verden |
| Spain | El mundo del silencio |
| Finland | Hiljainen maailma |
| France (dubbed version) | The Silent World |
| Greece (transliterated ISO-LATIN-1 title) | O kosmos tis siopis |
| Hungary | A csend világa |
| Italy | Il mondo del silenzio |
| Poland | Swiat milczenia |
| Portugal | O Mundo do Silêncio |
| Sweden | Den tysta världen |
| Turkey (Turkish title) | Sessiz dünya |
| West Germany | Die schweigende Welt |
| World-wide (English title) | The Silent World |
