Enjoying a film that has everything

Every once in a while I have to watch ORSON WELLES' "TOUCH OF EVIL" -- the version restored as closely as possible to the director's original vision -- to remind myself what a great film can achieve.
I can watch "Touch of Evil" for the plot, which follows the uncovering of a corrupt law official in a border town, or I can watch it for the cast, which includes a wide-eyed and frenzied DENNIS WEAVER in a small but significant role.
CHARLTON HESTON, JANET LEIGH and Welles himself are superb, too.
I can also watch the film for its mastery, including a three-minute-20-second opening tracking shot that set a standard for great, long takes.
Last night, I watched it just for the pure enjoyment of all its parts meshing together, and I marveled that the studio could even consider messing with it.