Thanks, all of you.
Please let me elaborate the present dilemma.
First, it's an Israeli film, which means very low budget (in US terms).
I encountered an amazing true story about chain of events that involves unbelievable coincidences. So, though I don't have previous experience, I decided to make a documentary out of it. The documentary is basically 'talking heads', where the participants in the chain of event narrate the story, each from one's POV. Looking for funding to complete the documentary from local organizations that support documentaries, I realized that having no previous experience (and being 71 y.o.), there is no way I'm going to get funds. So I looked for a producer to approach those organizations.
A producer I contacted was thrilled by the story and decided to make a feature movie, based on true story, out of it. Since my interest here is that the story will be known by as many people as possible, I agreed gladly. The documentary will be screened only after the feature. The documentary is necessary as there is no doubt in my mind that many people wouldn't believe that those events actually took place, the coincidences are remarkable and unbelievable.
For a feature movie, the core chain of events needs being 'juiced' with dramatization, probably adding happenings to the core chain of events.
Some events, those concerning the main chain of events, are mandatory, like a car crash and hospital scenes, including a surgery. Other events aren't mandatory, they are only to 'juice up' the story and create drama.
The producer is busy doing other business, in between producing movies, so I decided to speed things up by trying to raise funds from unconventional sources.
The producer's mind is elsewhere and he sticks to the idea that first some money should come in, then a good script should be written, then the budget will be determined and potential backers will be approached.
Since the non-conventional backers I have in mind aren't from the film industry, I'm quite certain they'd want to know what the budget is, before considering putting in their money.
Your views?