Continuity mistake: When Frank and Martha are walking by the river, he is carrying her orange bag. At first he is carrying it hanging by a strap from his shoulder, but when the angle changes he is carrying it by a handle.
Continuity mistake: In the flashback, where Victor's parents ask him who his favourite Indian is, before he walks out the door, there are two girls on the porch playing with a sparkler while leaning on the rail, facing away from the door. In the next shot, in a close-up where Victor comes through the door, the girls are now leaning against the exterior of the house next to the door, facing each other. No sparkler in sight. (00:25:11)