See Manhunter instead! This film is a "dumbed-down" version of Manhunter the 1986 original film with Hannibal Lecter screenplay by Thomas Harris and stylishly directed by Michael Mann. Unlike Red Dragon it is a suspenseful, subtle, psychological thriller. Wonderful acting by William Petersen, Tom Noonan, Joan Allen and the rest of the cast.
In Red Dragon every detail, even when unnecessary, was spelled out for the viewer. Weak acting by almost all of the actors. None of the characters is very sympathetic or even interesting. Anthony Hopkins is becoming shameless in his now campy portrayal of Lecter.
Honestly, see Manhunter to get the real masterpiece of all the Hannibal Lecter films. You won't regret it!