After Dylan see's that Jamie has drawn on his face, he gets her back by drawing on her face with a pen with ink that will only show up under a black light. While he's drawing on her face, he makes what looks like a circle around her left eye. When she is shown, later at her meeting, with the drawing Dylan did on her face, there is no circle around her left eye. Some can say it was the eyebrow he drew, but the eyebrow shown drawn on her is not as circular as what was shown when he was drawing on her.
When Jamie leaves the house because she "has to catch a red eye to New York," the last two digits of the LED oven clock read "53". When Dylan goes to stop her, the complete time on the oven clock reads "45" minutes past the hour. When Dylan returns through the kitchen, once again only the last two digits of the clock can be seen, which now read "54."
In the overhead shot of Jamie starting to climb the chain link fence at the Hollywood sign the fence material is on the far side of the top rail. However, the low-angle shot of her sitting on the fence shows the fencing has changed sides.
When Tommy jumps to the river we see that he jumps close to 3 feet away from the shore based on the impulse he took, later and from Dylan's point of view we see the boat a little farther, and finally when he starts the engine and goes, the distance is much bigger.
When Dylan picks up his dad at the airport and eat at the restaurant Daily Grill there isn't a Daily Grill at Newark airport or anywhere in NYC. They do however have a location in LAX but Dylan is picking up his dad in NYC not LA.
At the airport, Dylan meets his arriving father at the aircraft gate rather than outside a security checkpoint. If meeting or picking up a family member that is disabled, or a young child, non-passenger tickets are issued, so the competent adult can pick up meet the individual at the gate. This would apply to the father because of his illness (Alzheimer's Disease).
Jamie gets a call while in the bathroom. She holds a conversation with the person, but you can see in the reflection on the mirror that she hasn't answered the call - the green ('Answer') and red ('Decline') buttons can be seen.
In one of the bedroom scenes, Jamie and Dylan are clearly covered with one silver blanket however when Dylan lifts his head lying on top of Jamie, both his back and her front are covered which could have been only possible with two blankets.
When Dylan and his nephew are sitting still in the water, talking on their motor boats, you can see his nephew's boat abruptly pull to the side because his boat is on a string and the boat was pulling away.