Annie's car is "The Classic" -- the Delta 88 Oldsmobile that appears in every Evil Dead movie, and nearly every other Sam Raimi movie.
Keanu Reeves and his on-screen wife Hilary Swank visited with local spousal abuse counselors to understand why men were abusive to their wives and why the wives stayed with the husbands.
To prepare for her role in this film, Cate Blanchett visited five fortune tellers in one week. One of them told her she needed a bodyguard.
Billy Bob Thornton (who co-wrote the screenplay) was asked to play the part later taken by Giovanni Ribisi.