Factual error: When Whitney Houston turns up at the Oscars, it's night time. In reality, guests to the Academy Awards always arrive in the afternoon. (01:40:35)
Factual error: Outside the Oscars, the camera pans around to show the crowds and the security guards on the surrounding rooftops. One is holding a rifle which he should be, however there is another guard standing next to him overlooking the crowd holding a shotgun. This makes no sense at all, if he were to ever use that weapon from his position he would hit dozens of people.
Answer: The fact that Frank hires an older gray haired bodyguard for Rachel after he quit tells me that he didn't want her getting involved with another man, because his intention was that he would be involved with her.
You should read the script; some of the deleted scenes mention the part where she slaps him and why, and the ending when she gets back off the plane. They talk and she gives him a cross.