At about 27:20 minutes in, when David and Kate are lying on the bed talking, both are lying on their stomachs and appear unclothed. Initially, the blanket is resting on Kate's mid-back, and then the shot changes to David. When it changes back to Kate, during the same dialogue, the blanket is resting higher up near her shoulder. In a subsequent shot, it is back down to her mid-back.
According to a shot of his smartphone just before David is fired on Monday, May 18, which is only consistent with the recent year 2015. However, later in the film, David receives a reply text from MJ dated in September 2013. In addition to being the wrong year, it's the wrong month because the plot is supposedly still in May since David is fired on the same day Kate is about to begin a law firm summer internship.
As David and Kate are sitting in bed, Kate has a laptop on her lap. In the next shot from the reverse angle, the laptop is on David's lap. In the following shot from the first angle, the laptop is back in Kate's lap.
About half way through (46m13s) David leaves on his bike to meet a friend for a tennis game - but the bike he leaves on is his old one, when he gets to the tennis court its back to his new bike (there is also a wardrobe change)