How Early for Fantasmic?

[Eventer98]

I just cancelled my ADR's for the H&V/Fantasmic package b/c I am not that excited about dining at H&V. I am sure it would be ok but I would rather go somewhere I really want to instead. So....how early should I plan to arrive for Fantasmic if I don't have the reserved seating anymore?? I have DR's for House of Blues at 5 and was thinking of getting seats after that..around 7:30 (starts at 8:30)??? Thanks