In the end credits, Marlon Brando's name is the only one that is not accompanied by the character name that he plays (e.g. "as Vito Corleone").
Other than Mario Puzo's name there are no opening credits.
Although Mario Puzo is given possessory credit at the beginning, and is credited as a screenwriter at the end, no credit is given to him on-screen as author of the original novel, even though that credit is given on the poster. This credit does appear in the second film, however.
In the Blu-Ray version, the 2002 Paramount logo is used and tinted in sepia.
The 1968 Paramount logo doesn't appear on screen until the end.