Trivia: In the scene in which Alvy and Annie are watching people in the park and Alvy comments, "Oh, there goes the winner of the Truman Capote Look-Alike Contest," the passer by is actually Truman Capote, in an un-credited cameo.
Trivia: Alvy's sneezing into the cocaine was an unscripted accident.
Suggested correction: He turns the box for maximum effect.
This correction makes no sense in attempting to invalidate the trivia. If this meant to add to the trivia, create a new trivia entry.
At a guess their point is that by turning the box to increase the effect, it shows it wasn't an accident, but intentional.