| Release Date | 18 May 2006 |
| Budget | $1,000,000 |
| Tagline | The untold story of the team that had America at its feet. |
| Genre | Documentary, Sport |
| Country | UKUSA |
| Language | English |
| Sound Mix | Dolby Digital |
| Color | Color, Black and White |
| Film Type | Documentary |
| Film Class | Biography [nf] |
| Niche Genre | Sports & Recreation [nf] |
| Themes | Rise and Fall Stories, Soccer Players |
Once in a Lifetime: The Extraordinary Story of the New York Cosmos is a documentary film about the New York Cosmos, one of the most famous football (soccer) clubs ever in the United States.