[CaptainCrunch]

I still consider the opening line to the first book to be one of the classical opening book lines

''The man in black fled across the desert, and the gunslinger followed.''

of course the best is still

It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair, we had everything before us, we had nothing before us, we were all going direct to Heaven, we were all going direct the other way - in short, the period was so far like the present period, that some of its noisiest authorities insisted on its being received, for good or for evil, in the superlative degree of comparison only.

Or the snoopy opening

It was a dark and stormy night. Suddenly, a shot rang out! A door slammed. The maid screamed. Suddenly, a pirate ship appeared on the horizon! While millions of people were starving, the king lived in luxury. Meanwhile, on a small farm in Kansas, a boy was growing up. Part 2: A light snow was falling, and the little girl with the tattered shawl had not sold a violet all day. At that very moment, a young intern at City Hospital was making an important discovery.