Their drink wouldn't or shouldn't be salty so that's immediately out. And logically The first one doesn't make sense. The odds of a person who's afraid of the dark going to a movie theatre is slim. so the most logical answer is it was a sad movie
The sea is used as a symbol for life and its hardships. Santiago's hand become a religious symbol in two ways. First, the wounds Santiago suffers on his palms are an obvious connection to Christ, especially his crucifixion. The Mast symbolize the cross