Banana Daiquiri
Fredo Corleone
At a Havana café, a tipsy Fredo orders a banana daiquiri and asks Michael for the Spanish word for it.
Sources: Cocktail Society: 22 Cocktails famously featured in Film and TV; Cheryl Charming (Miss Charming): Cocktails in Film; Liquor.com 'Movie Mixology' (via The Daily Meal)