I finally watched this and oh boy this was a film created by a dumb committee. There are more than a few smoking guns.
1. The pitbull. (Gorgeous Pit by the way

) When the Pit first appeared I was afraid the dog would try to attack the boy and be killed by the predodog. Thankfully that didnt happen and then I thought the dog would try t odefend the boy. That didnt happen. The dog just kinda disappears. Then later its shown running towards the main characters and it's done in a way that makes it seem it will jump in the RV and tag along. That doesnt happen either. It just disappears. Then suddenly the Predodog is tagging along. So here's what I think happened. Shane was going to have the Pit tag along with the boy and be sort of emotional support. The studio didnt think that was good enough so some idiot said to replace the Pit with the Predodog and have it tag along and provide "humor" and get close to Olivia's character.
2. The mom. She just disappears after the UberPredator breaks into the house. Feels like the end of her story ended up on the cutting room floor when the climax was reshot.
3. The reshooting of the climax is a big ol obvious smoking gun.
4. Uber predator tells the humans that McKenna is a true warrior and that he will lead the humans and they will be hunted and McKenna will be the prize. Then not 5 minutes later Rory is the target and the UberPredator just wants to steal him and flee. Feels like something was changed by the studio.
5. The Predator Killer scene. That scene absolutely reeks of last minute studio mandate. Everything from the way it sets up a sequel, toMcKenna suddenly being a respected officer in charge with all that chest salad, to the kid being a top researcher to the God awful cgi...if that scene wasnt a studio mandate I'll eat my goddamn boots.