Scriptwriting is a fantastic way to frustrate the crap out of you.  Even if you conquer everything - plot, characters, theme, etc. you still may completely miss the mark - selling it - if you don't pay attention to the tip of the spear:

The Concept.  (warning: I'm going to whip this spear analogy to death)

A high concept is (loosely) defined as being "the elevator pitch" - something you can say in a few sentences between floors of an elevator ride.  I say parking lot pitch because it's even harder to contain someone who is searching for their car and anxious to get out of wherever they are - elevators are simple.  Unless the person you're pitching is an action hero and can escape through the roof, they're stuck.  Parking lots not so much - but I digress.

A pitch can also be the logline (I'll give you examples below)

BULL (new series on CBS):  Based on Doctor Phil's early life, a psychologist who is a world-renowned jury analyzer solves crimes every week.

BRAIN DEAD: An alien species invades people's brains in Washington and makes them even more partisan than they are causing even more gridlock in the halls of power.

Columbo:   A seemingly bumbling detective who is actually a brilliant crime fighter, solves the HOW DONE IT instead of the WHO DONE IT.

The concept here is to pitch someone quickly and concisely so they request your script.

Rape?

I frowned at the students' contention.  Then I started to think about it.  Is it?  Maybe they had a point.

I had assigned the movie "Overboard" to my Intro to Scriptwriting class (Class Info) in honor of Garry Marshall's passing. I needed a romcom and that was the one that fit best when I looked at his filmography.  The discussion was to be about how these types of movies work and when done properly, reinforce the best of what is a fun genre.

The key words here are "was to be."

An interesting and troubling side discussion came up about the sex scene in which Goldie Hawn and Kurt Russell have (loving) intercourse.  It comes at an appropriate time in the film and it's shot very beautifully and tenderly.

So why could it be considered rape?

The storyline is simple and funny.  Goldie plays a wealthy, obnoxious woman who is married to a vacuous and specious man.  They do nothing positive as they sail the seas in yachts that look like the Queen Mary.  She is not happy, never satisfied and constantly, consistently ultra-critical of everyone and everything.  He hates her (it's obvious) and yearns to be free from her constant screech.

Russell is Joe Everyman, a widower, laissez-faire father with three unruly boys who the school district is about to come down hard on because the boys are quite boisterous, even to toilet-papering the school's principal when she visits to welcome them to the area. The principal warns Russell that he has to get some supervision for the boys or else the next visit will be from social services.