Regarding Mariah Carey's claims about 9/11 ruining this movie.
This film was released on September 21st, 2001. (week 38)
Some data via boxofficemojo.com
Sep. 28–Oct. 4 $94,625,569 +24.5%
Sep. 21–27 $76,015,096 -9.1%
Sep. 14–20 $83,634,364 -9.5%
Sep. 7–13 $92,421,954 -31.4%
So the actual week of September 11th there was a huge drop in receipts versus the week before (as you would expect). In the weeks following, revenue continued to decrease. I think this can likely be chalked up to the fact that there weren't any great movies released on these weekends (Hardball, The Glass House,Glitter,Megiddo: The Omega Code II).
The next week brought some legitimate draws
Don't Say a Word $22,167,881
Hearts in Atlantis $11,418,341
Not that anyone actually bought into the idea that the failure was 9/11 based, but he data debunks it