The film shows two different points of views on this issue.

In the movie version, only two points of view were shown.

South has shown 16-18 total points, while North's hand is largely unknown.

These points on the curves are shown in the fig.

South's double over two spades showed 14 or 15 points.

But the bid was a two-way move, showing either 10-12 points or more than 16.

Discarded points are shown in the above table within brackets.

But since one club would have shown at least 16 points, North had to open with one diamond.

The yields and boiling points of these products are shown in the following chart.

South's one-no-trump response was natural, showing 8 to 13 points or an unlikely 16-plus.