Plot hole: The first time they communicate with the "entity" in the spaceship, they find a correspondence between numbers sent by the entity and letters of the alphabet. The entity presents itself as "Jerry". Later on, the entity tells Dustin Hoffman, "Stop calling me Jerry" - and then Dustin Hoffman realizes that the number-letter correspondence was wrong, and the actual name of the entity was "Harry". But if that is true, how could they have communicated without problems before? The very first word that the entity used was "hello", which would have to be displayed wrong, since it begins with an "h" and has an "e".

Sphere (1998)
1 plot hole - chronological order
Directed by: Barry Levinson
Starring: Samuel L. Jackson, Dustin Hoffman, Liev Schreiber, Queen Latifah, Sharon Stone, Peter Coyote
Continuity mistake: When Norman is running through the spaceship, he runs through a doorway and you get a glimpse of his facemask. It's dry. After going through water to get to the spaceship, wouldn't there be water on it? (00:43:10)
Suggested correction: On the first visit to the spacecraft, we're told there's heat coming from it. There's no water on the masks of the team during that visit either. If there's enough heat for them to feel it at that depth, it's easily plausible that there's enough heat to dry their masks.
Question: Whose footprints it is that they found in the ship first first time they enter?
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