Good job on actually going through with such a large project! It takes quite a lot of determination to do that -- kudos! With that being said, there is still quite a lot to learn. You need to use a tripod. Your handheld shots are shaky and disorienting, and it really takes away from the image. Speaking of image -- LIGHTING! You should light all of your indoor scenes. Out of everything you can improve on, lighting should be a priority. It will make your project go from a "home video" look to something quite a bit more professional.
I think you guys need to work on a much smaller project first. One that doesn't deal with magic, special effects, large casts, etc. This project seems like it has the potential to be quite interesting, but all the technical shortcomings are taking A LOT away from your work. Spend some time studying lighting, shot composition, audio, post production, etc. Spend a lot of time on each field. A problem in just ONE of those areas is going to stick out like a sore thumb. A problem in ALL of those areas is why lots of people are unable to achieve the "film feel" they want. It has nothing to do with not having a shiny new DSLR or the latest version of After Effects. It's all in the basics, and you really need to work on yours.