WARNING: SPOILER.
I was a college student when I saw this movie in 1967 and again in 1968. Its irreverent and crazy look at male-female relationships was intoxicating. Aside from the general theme about "getting the girl," the only thing I remember is the hilarious opening scene in which hundreds of pretty girls, all dressed alike, are standing in a long line, waiting for the opportunity to interact with the guy who "had the knack (with women)." As the camera follows the long line of beauties around the block, into an apartment building, and up the stairs, the viewer wonders what's going on. Finally the camera reaches the head of the line, and we see what every girl has waited hours for: meeting the cool guy and signing his guest book. Priceless!