Toby tells Kate that he will see her Wednesday to sign the divorce papers. However, when Kate receives a text message after signing the papers, the day on her phone is Monday.
Kate's son Jack is seen as a baby and toddler with blonde hair and as an adult with dark blonde hair. The boy that plays him as a 6-7 year old has dark brown hair. A persons hair can change get darker or lighter, but it would not change that much.