During the Ginko trimming scene they trim down until there's only one leaf left, in the next scene there are more leaves on the plant.
While Maya's team is in the moisturizer product room the bottles behind Hildy move and change color from shot to shot.
When referring to the ingredients of the new product Maya says that they use a special Ginko that only grows in Hiroshima. All Ginko today is related and comes from one area in China, which is where the trees in Hiroshima descend from, so they are not 'special.'
When in London, it is implied that Zoe is on a number 24 bus. The view from the bus windows is Whitehall (correct), but then changes to the Natural History Museum - which is quite opposite to the 24 bus route.
It's Christmas in New York and there's no snow, no barren trees, no chill. When they pan the lower east side and down to Maya (Jennifer Lopez) on the park bench, all the trees are in full bloom with green leaves on them. Winter in New York would have all the trees leaf-less (deciduous trees) and it would be below freezing. Maya is sitting comfortably with one Lycra layer on.
Jennifer Lopez is shown trying on a very strait-laced outfit of high-necked blouse and blazer for her first day at work, saying she wants to make a good impression, but she went to her interview earlier inappropriately dressed in a low-cut dress that showed her cleavage. She ends up changing her sensible outfit for an equally inappropriate shoulder-baring dress and never really wears anything businesslike during her tenure as a consultant.