Continuity mistake: As they drove to Faraway Downs the steering wheel was on the right side. After Fletcher was fired and drove off, the steering wheel was suddenly on the left side.
Suggested correction: Not the same truck they arrived in.
Other mistake: When Nullah rides the horse out of the billabong at the beginning and is galloping towards the ranch, you can see dust rising from the ground in front of him from another horse and rider.