Goofs

The sun appears to rise in the same place in the sky as it sets.

When George and Robin have their "romp" in the garage the clock on the wall reads 2:30. Afterwards, Sam goes outside and hugs several people then we cut to Robin still in the garage and the time on the clock is 2:20.

At the sunbathing scene with Sam and Alyssa, the suntan lotion spot on Sam's left cheek appears and disappears.

When George is talking to Robin after she has brought him and Sam pizza, the pizza boxes change position on the table numerous times.

When Alisya is talking to Robin about her coming everyday to help with the house, Alisya's hair repeatedly jumps from her shoulder to hanging down her back between shots.

When Sam removes the stud from his chin, it leaves neither a hole nor a scar.

When Sam is on the roof and talking to Josh, whom Alyssa has volunteered to help, we see a partially digitally erased plane fly out from behind his right ear. A few seconds later, when we cut back to Sam the same ghost of a plane is visible to the right of his head and flying right to left.

At the beginning when it shows a close up of George's house, you can clearly see the camera in the window.