If an investor asks a simple question, give a simple answer.
If you care about the film you are making, it is a passion project. It does not matter if it is low-budget, experimental or a high-budget action adventure.
The investor needs to know all the plot points of the film from start to finish in one page.
No matter their personal reasons for investing, there are two things all film investors want to know: how much money am I going to make and when am I going to make it?
Avoid foolish forecasting. If I had told potential investors that The Blair Witch Project, a very low-budget film, was going to earn $352 million dollars worldwide, which it did, no one would ever hire me.