Goofs

Katharine tells Tess the combination to her house alarm is 75432000, but when Tess turns the alarm off before entering the house, she presses only six buttons.

In the opening shot, the Staten Island Ferry is the "Gov. Herbert H. Lehman". When Tess and Cyn disembark from the same ferry at the South Ferry Terminal, it shows them getting off a different Staten Island Ferry, "The American Legion".

When Tess arrives at her first day of work for Mr. Trask, she meets Miss Baxter, who offers to get Tess coffee, who asks for "milk and sugar". When Baxter returns, she has only one cup of coffee for herself, and as they stroll into Tess's new office together, the coffee cup vanishes from Baxter's hand.

When Tess first arrives at Katharine's office and unpacks her box, she takes the books out of the box and places them on the desk, but in the next shot (overhead), the books are back in the box.

When Tess walks into to quit her job with Lutz, she is wearing all black. While storming out on him in the next shot, she is wearing blue.

It was made clear that Katharine and Jack had a long-term relationship before Tess came on the scene, yet Jack fails to recognize Katharine's office when he visits Tess when she was putting on her act as a broker.

Katharine has only just moved to New York from Boston. This is evidenced by what the recruiter says to Tess: 'transferring down from Boston, name of Parker', as well as the fact that Katharine does not yet have a place to live. (She tells Tess on the phone from the hospital that she's staying at her parents' house and her voice on the Dictaphone makes reference to her looking for a place of her own.) She also says to Tess of her and Jack: 'We're living in the same city now.', which implies this is a new development. It is therefore perfectly possible that, while Jack knows where Katharine works and knows that it is at the same place as Tess (and assumes that Katharine is Tess's colleague), he has never seen her office.

When Katherine is on the phone speaking German to Helmut at the inn where she's booking her skiing trip, at the end of the conversation she signs off with "ciao". Although that is an Italian word, many people worldwide, but especially in Europe even outside of Italy, use "ciao" to end a phone conversation.

At the end, in Tess's new office, she picks up the phone to call Cynthia, but dials only seven numbers. In a huge office complex like Trask Industries, everybody would have to dial nine, or some other number first to get a line out.

In many large companies, phones, especially for management, have direct lines out; i.e., they do not require dialing extra numbers to get an "outside line".

When Tess is tearing the article out of the newspaper, she uses a ruler which changes mid-shot.

This is a children's novelty ruler (showing the letters of the alphabet) with a lenticular lens effect that switches between two colors and pictures, depending on which angle it is viewed.

When Trask jumps off the elevator to hear Tess explain how she developed her idea, the elevator doors close behind him. As is evident earlier, the doors would have automatically reopened when sensing a body or other object in the way.

However, the doors can only sense an obstruction by touch, and in the earlier instances, he touched the doors for them to reopen. The doors don't reopen when he gets out, because he doesn't touch them.

At the end, as Tess is on the phone in her office in the morning, the shadows are falling eastward on the southern façade of the One Chase Manhattan Plaza, which means that it is sunset time.

When Tess is using the phone during her act as a broker in Katharine's office, right after she gets off the phone with Jack, she responds to one of the invitations on Katharine's desk, but none of the phone lights are lit, meaning Tess has no line out.

The newspaper column by Suzy in the New York Post has the item which begins "Tonight is 'Winternight at the Plaza,' the 80th anniversary celebration ..." appearing in both the first and third columns on the page.

When Katherine arrives on the rooftop helipad, there is a huge blast of wind on the people standing by and the engine can be heard whirring. The bystanders immediately run up to greet Katherine as she exits the helicopter. The rotors are completely still, and there is no down-wind, yet the sounds of the engine slowing down and the rotors whipping through the air are still heard.

When Tess and Jack are walking in to see Mr. Trask for the Monday morning meeting, the dolly rig can be seen reflected in the gold plaque at the bottom of the stairs, just after they pass by.

At the end, Miss Baxter is telling Tess she has lunch with Mr. Trask at 1 o'clock at his office downtown. However, when the camera zooms out from the closing shot, Tess is in an office building next to the World Trade Center - which is as far downtown in Manhattan as one can go.

When Tess arrives at Trask on her first day, the secretary tells her, "It's all the way at the end of the hall", but Tess makes a left turn before the end of the hall.