In the scene where Jake is eating ice cream from a parfait glass while Jane is relaxing in the bathtub, the ice cream changes from almost empty back to almost full.
Soon-to-be son-in-law Harley fills a glass of wine to the brim, but in the next shot as he raises it to his lips it is only 2/3 full.
After Jake and Jane's second love scene in Jane's house, Jake's hair goes from being messed up and fluffy to combed and gelled in between shots while he is getting dressed.
When Jane is telling her 3 friends that she is having an affair with Jake her hair switches from down around her face to swept back and keeps switching back and forth each time she is shown on screen.
When Jane makes "croque monsieur" for Adam in her kitchen, she takes the pan of the sandwiches out of the oven twice.
When Jake is on the bed talking to the doctor he says he's taking Flomax, he explains to Jane if he didn't he'd be peeing 40 times a day .Flomax is used by men to help them pee, not prevent it.
In the part of the movie where Jane waits outside the Santa Barbara Medical Building for her therapist, there is a sign that says Mission Pharmacy. In real life it is a restaurant called The Wine Cask. You can see wine bottles displayed through the glass door of the supposed pharmacy.
In many shots during the rainstorm sequence, the background is obviously in full sunlight and several characters cast shadows as they run toward house.
When Jane and Adam are looking over the plans together at her house, Adam asks "Have you lived here long?" but his mouth isn't moving.
In the last scene, Adam has a visible earpiece.
When Jane and Adam put the croissants in the oven, they are much too close together. Croissants expand over double as they cook, and they would have stuck together. As a baker, Jane would know this.
In the scene where Adam is trying on clothes, he tries on a sweater that he refers to as gray. It is clearly brown.