just to share my piece of the bezier cake:
I tried to use the vl modules about 1.5 years back to create a camera path. my intention was it to follow a series of stationary points where the camera would break into and come to a stop, stay for a while, then switch focus, and eventually continue at my will at the spline in a smooth fashion.
it failed me basically along the same lines as it did for seltzdesign and io: it did not spread well, in a way where bezier slices literally make ends meet, and stay put.
i frankensteined something together from the old vvvv and the new vl ones, however, it turned out to be a binsizing nightmare, because the vvvv nodes count the count different somehow afair.
long story short, since then I kept away from bezier camera paths. which is a shame, because it would certainly be a nice tool for storytelling