Good question. Let's talk about it more when we actually make $8,888. We're not there yet.
However, if you browse Kickstarter for even a few minutes, you will find hundreds of projects that receive 1000% (or more) of their funding. That means projects that seek $10,000 ultimately make $100,000.
For us, it simply means more resources. First, it means more money for cast and crew stipends: while they have equity in the film, and an ultimate distribution deal, we certainly don't want this project to pull money from them for travel/fuel, materials or supplies (such as makeup).
Second, it means additional budget for props, costumes, wardrobe, rentals and other expenses. For the full film, we need several costumes for more than a dozen characters--including law enforcement officer uniforms. We need supplies for practical effects and more.
Finally, it means we can devote more resources to helping our team have the tools they need. Our film composer will be able to upgrade some software to help with composition, for instance. We'll be able to secure the talents and facilities of others for visual effects, color grading, sound design, sound mixing, and more. We CAN do it with our $8,888 budget--but any budget above that will help us do it better.