When Cal and his father sit on the bed his father has a cup of tea with a spoon. He takes the teabag out with the spoon and puts the spoon on the table. In the next shot the spoon is in the cup.
After Cal is beaten up in the street his father gives him a glass of liquor which he takes in his right hand but drinks it in his left.
When Cal goes to Marcella's bedroom the camera scans the room and there is no hat on a chair but when he walks into the room there is a hat on the chair.
Cal buys a present and puts it in his coat pocket but it disappears as he continues to walk.