Dave receives a text message to his iPhone from Aubrey. His phone is on the passenger seat lit up showing the time as 1:57. Seconds later he picks up the phone to read the text and it shows the time as 11:15.
When Aubrey and Dave are driving after he picked her up at her house, Aubrey's hair is curly. When she steps out of the car on the parking lot, her hair is straight, and in the next scene, the kissing scene in front of her house, her hair is curly again.
In the final scene where Aubrey decides to run back to Dave, who is still at his car, you see her drop her bag to the ground to make out with him. In the next scene however, they change the camera angle of them making out, and the book-bag is nowhere to be seen.