[cloudmountain]

It is said that there are only 7 plotlines.

From the Internet:
The seven basic plots are:

1. overcoming the monster;
2. rags to riches;
3. the quest;
4. voyage and return;
5. comedy;
6. tragedy;
7. rebirth.

HOW did we ever survive without Google and the Internet?

.

Oh yeah, books. :o)

[Utilizer]

How about: Boy Meets Girl, Boy Loses Girl, Boy Gets Girl.

Pretty common theme, if I recall correctly. :)