Check out this props oversight. In the first image, Jack Dawson (played by Leonardo DiCaprio) was standing next to his friend on the ship’s bow, and the guardrails on the sides were separated.

Later in the film, both protagonists find themselves in the same place to act out one of the most iconic scenes: Jack embraces Rose with the wind blowing on them. But the railings were now attached. Is it possible that the bars were carried away by the love inspired by this shot and decided to embrace each other too?