Revealing mistake: When Cindy hugs Tom (Charlie Sheen) and the razor blade gets stuck to his chest, the patch the blade is attached to under his shirt is visible. (00:05:45)
Revealing mistake: When Cindy pulls Mrs. Norris and places her hair in front of the fan, hair can be seen flying in the air before Norris' hair gets in the fan. (00:16:35)
Revealing mistake: When the little boy is killed at the boxing match in the flashback, you can tell the Don King-looking-guy is falling onto a dummy, and not the real boy. (01:00:50)
Revealing mistake: Halfway through the movie, with the crashed plane, the aircraft engine is actually running backwards.
Answer: The spoof of "Red Eye" was dropped, there is no reference.
Bjoern_Buller