Sorry, i think i have over thunk this and confused myself   
Is From a Story By OMB or Story By

OMB

The unfortunate conclusion is that without guidance from Invelos, we're simply stuck with different users handling this in different ways.

It seems to me that the people responsible for determining movie and TV credits consider "From a Story by" and "Based on a Story by" to be essentially the same thing.

Screen Credits Manual

Quote:
...the author of the source material may be given credit that specifies the form in which such material was acquired -- for instance, “From a Play by,” “From a Novel by,” “From a Saturday Evening Post Story by,” “From a Series of Articles by,” “Based on a Story by,” etc.

TV Credits Manual

Quote:
This means that source material is material assigned to the writer which was previously published or exploited and upon which the writer’s work is to be based (e.g., a novel, a produced play or series of published articles), or any other material written outside of the Guild’s jurisdiction (e.g., literary material purchased from a non-professional writer). Illustrative examples of source material credits are: “From A Play by”, “From a Novel by”, “Based upon a story by”, “From a series of articles by”, “Based upon a teleplay by” or other appropriate wording indicating the form in which such source material is acquired.

---------------

For me, it would come down to whether this was a published story or just a pitch. I suspected that unlike "based on a story by," it's frequently the latter. Do we have examples?

Quoting Corne:

Quote:
I don't see anything in the rules that says an OMB credit has to be published, do you?
It has to be another medium.

There isn't anything in the Rules which says it has to be published.  This has been argued in the past.  I don't know why it keeps being brought up.  It is a completely invalid argument.

Quoting Ace_of_Sevens:

Quote:
<snip> ...but it should at least be hypothetically publishable... <snip>

How would we possibly be able to determine such a thing?

If the filmmakers give a credit such as "From a Story By...", then they apparently felt a need to credit that person.  I've even seen a credit such as "Based on an Idea by...".  Again, if the filmmakers see fit to give this person a credit for their idea, then why would we want to leave it out of DVDP as an OMB credit?

It seems to me that OMB should be allowed a very wide interpretation, not a narrow one.

I too must agree with Hal...