When Deakins is talking to his secretary in the Manhattan penthouse, she begins to speak but no sound comes out of her mouth.
In the opening sequence, you can see the reflection of the crew in the windows of the Long Island Railroad train as it passes by camera, leaving Stony Brook Station.
In Flushing Meadows-Corona Park, after Rasputin receives his subpoena, he mentions a woman named "Lilly." Lilly was a character that was abruptly cut out of the script and the production on the first day of photography. This scene was shot early the first day, but the decision was made later that evening when the actress dropped out.