In the later seasons of Buffy they kept doing the same "joke" over and over. A scene would start with 2 regular characters talking. Then one of them would suddenly turn into a monster, and then it would cut to the other one waking up and instantly sitting bolt upright in bed. After a while it wasn't a surprise any more.
This chart is a great idea. Every vampire movie or TV series has to have a scene near the start where someone explains that A, B and C are true, but X, Y and Z are "just Hollywood bullshit". In future a new vampire can just hold up the chart and point to where he fits in.
A few suggestions for categories: Killed by silver ("That is for Verevolves" to quote George Hamilton); Retractable/hideable fangs; Super speed/jumping (sort of like half-drop flying I suppose); and finally "has a blonde human girlfriend with a tragic past".
