At about 29 minutes into the movie, when they first show Joan Cusack's character, Judge De Salvo, on the bench, the name plate shows her name as "Joan De Salvo," with a space between the De and Salvo. As Alec Baldwin is walking toward the lawyers table, there is a quick flash of the name plate, where you can see that there is no space between the De and the Salvo in her name. The next time the name plate is shown, the space is back. The next time it is shown, right after she says, "You're going to jail,", it says "Joan Desalvo," and the space is again missing. When it is shown again, it is back to "De Salvo."
Just after the court case, the lawyer drives to the family's home, yet he had just had an epileptic seizure and was known to have regular seizures - hence the dog. In California, and most of USA, your epilepsy must be controlled for at least 3 months before you are allowed to drive.
Campbell Alexander's commercial "I'm Campbell Alexander. I have a 90% success rate. What can I do for you?" violates Rule 7.1 of ABA Model Rules of Professional Conduct. Comment 3 of Rule 7.1 states a lawyer may not make statements that create an "unjustified expectation" that the same results could be obtained for other clients in similar matters without reference to the specific factual and legal circumstances, even if the statements are literally true. This applies to Campbell Alexander's statement about his 90% success record, which is a violation of the rules.
Anna's lawsuit starts with cross examination from the defendant and lawyer-turned-nursemaid mother Sara Fitzgerald followed by Anna's lawyer. The order of proceedings is incorrectly inverted since a plaintiff like Anna would present her lawsuits underlying claims by Direct before scrutinized by Sara's cross.
Kate's mother is pursued by the "Make-A-Wish Foundation" because Kate is dying. The Make-A-Wish Foundation "grants wishes" for children with a life-threatening medical condition. They don't specifically seek out children who are dying. Kate would have probably been offered the chance to accept a "wish" when she was first diagnosed with terminal cancer as a child, and this is not only specific to Make-A-Wish. Most of these foundations follow the same guidelines throughout the US and Canada, and don't give preference to dying kids, but to any kid who suffers from a life-threatening condition.
Toward the beginning of the movie, where the family is outside jumping on the trampoline and blowing bubbles, Kate is seen blowing bubbles. However, if you look at the bubble stick, nothing is coming out.
In the scene where Kate and Taylor are kissing, there is spirit gum visible on Kate's left eyebrow. This is because although the brown hair and eyebrows Kate has in this scene are supposed to be her own, they are not. Sofia Vassilieva had her head shaved for the part.
Kate's date of birth is August 22nd 1990. After Kate dies and Anna says "Each year on Kate's birthday we take a family trip to her favorite place [Montana]" - they show the family presumably in Montana bundled up in warm jackets and scarves, but summer weather in Montana tends to be in the 70s-90s. Snow is rare in Montana's summertime.