When Jack pours himself a drink, when his daughter is just about to go out, it has no ice. Later in the same scene, when he finishes the drink, it has ice cubes in the glass.
Though set in an American mall, during the first scene in the mall, a Scotiabank (Canadian bank) logo sign is visible in a window reflection.
Jack is watching a TV on the kitchen counter that has no cable, antenna or power cord connected.
The hotel setting for 1978 has door locks, lighting, and building materials that did not exist in 1978. Look for the key card locks on the doors.