When the boy gets into bed, the lamp at his bedside is titling up and there is no photograph of his friends. When he wakes up, the lamp is tilting downwards and there is a photograph of his friends.
When the three spaceships fly into the horizon, they unrealistically disappear. All three are also badly composited and don't rotate according to the footage.
When the boy is running to his Grandparent's house and the spaceship can be seen in the sky, it does not go behind the tree even though it is at that distance.
When the boy is running to his Grandparent's house, the voice of the cameraman can be heard.