Often throughout the movie, different characters provide subtle nods
to the viewers that reveal Nash’s schizophrenic state. For example,
Nash experiences social dysfunction due to this disturbance as he is
seen on the roof of a Princeton building with his “roommate” Charles.
While talking about his fellow students, Nash leans over the edge of
the building and calls his classmates, “lesser mortals,” an atypical
outburst that most likely startled his classmates and hindered his
social relations. Also, Nash is portrayed in the library, muttering
under his breath various assortments of thoughts and ideas. Charles
then convinces Nash to go get pizza and beer when Nash walks out of
library yelling, “I have respect for beer!” This kind of behavior
disturbs the interpersonal relations Nash forms with his classmates at
Princeton, further serving as an example of a nod in the movie
pointing towards Nash’s eventual schizophrenic state. Furthermore,
another nod can be viewed as Nash believes he is playing a game of
pool against his roommate Charles. A few seconds later, Nash’s other
friends step into the bar and Hansen says, “who’s winning Nash, you or
you?” Hansen implies that Nash is, in his perspective, playing a game
of pool against nobody. However, the delusion of Charles in Nash’s
mind allows him to believe he’s in the middle of a game against
Charles, another sly nod. Finally, Nash gets into an argument with
Parcher about what is expected of Nash in his service to his country,
and Parcher storms out of Nash’s office after a threat to reveal Nash
to the Soviets. Nash then runs after Parcher and screams, “PARCHER!”
In Nash’s mind, he sees the delusion of Parcher walking through the
door, but when Sol opens his own door and looks at John questioningly,
Sol doesn’t see Parcher at all; he only sees John screaming down a
hallway at nothing, a final nod that can be observed to reveal Nash’s
deteriorating mental state.