Visible crew/equipment: At the end of the film when the bird is pooing on the wall, you can clearly see the pipe leading up to the fake bird which is making it do this. (01:10:15)
Visible crew/equipment: When Hanson enters the dining room with the trolley of food, a crewmembers hand can be seen ready to catch the door Hanson comes through. (00:22:10)
Visible crew/equipment: At the end of the film when Cindy (Anna Faris) is talking to the hot dog man/housekeeper, you can see her wireless microphone transmitter in one shot, then right after it you can see the wire for the mike running from her shirt to her pants. (01:11:05)
Visible crew/equipment: When the characters are spoofing "Charlie's Angels", you can see the studio roof in several shots. (01:05:10)
Visible crew/equipment: When Cindy first arrives at the mansion, Hanson greets her and tells her he wants to tickle her nose. When he tickles her, you can see something moving under his sleeve cuff, indicating that a device is being used to make the deformed hand move. (00:16:50)
Visible crew/equipment: When Cindy is being chased by a skeleton, as it turns a corner you can see a skateboard device attached to the feet to help it move. (00:50:20)
Answer: There is no Child's Play reference in this movie, the closest one was the living clown doll, which is a spoof of "Poltergeist"