Towards the end, when Ryan goes into the basement, when he opens the door he has a bat. As he goes down the stairs the bat is missing, but when he gets to the bottom the bat is back in his hand.
Claire finally has enough of Ryan's lying after finding out for sure that he has been cheating on her and kicks him out, leaving a bag of his clothing on the front lawn. After he goes in to lie to her face some more and then comes back out, he picks up the bag, rolls his eyes like the brat not getting his way that he is, and drops the bag back on the lawn and leaves. In the next scene showing the front of the house, the bag is gone. The next day when Claire steps outside, the bag is back with clothes strewn around.
When Hannah and Ryan are By the pool, Ryan picks up Hannah and throws her in, submerging her entire body under water. The scene then cuts to Hannah and Ryan kissing and Hannah's hair is half dry and half wet.
When Claire is removing the painter's tape from the wall in the nursery, there is no paint on the tape and in some spots the tape is not lined up with the edge of the wall, as it would be if they had really painted.