A toast is in order for Arthur, which became a comedy classic despite a quiet release 45 years ago. After penning Carl Reiner’s 1978 comedy The One and Only starring Henry Winkler, Steve Gordon was hired to direct his own Arthur script for Orion. Gordon initially considered George Segal and John Belushi for the title role before casting Dudley Moore off the success of 10, in which the actor starred opposite Bo Derek. Arthur centers on alcoholic playboy Arthur Bach, who will be cut off from his family fortune unless he marries a woman he doesn’t love, which becomes complicated when he falls for working-class Linda, played by Liza…