Quote -  since im getting the vue 7 core package with sci-fi, is it still good enough on its own to add to film? like green screening and all that stuff?
or
should I just wait until I can buy add ons for it? 

Huh? You're trying to do film work with a $50 software package? Not going to work.

Exactly what are you asking about green screening? Typically 3D rendering products save alpha masks with their output. The green screen is used when shooting live footage and compositing with CG mattes.

I doubt Pioneer can render animations at film resolution. I suspect, if you're serious about really doing film work, you would need at the minimum Infinite (multi-layer pass) and depending on how much work, you may need xStream with another 3D package like Max or Lightwave.

It sounds like you're pretty new to this stuff. If you're serious about it, I'd suggest you consider purchasing Esprit-- as it can be upgraded to Complete. Even though there's no 'official' upgrade path, e-on has said on several occasions they're willing to purchase back your copy of Complete (not at full retail) and apply it to a version of Infinite.

HTH.