Video
This is where you get into the serious business of putting it all together
i.e. coordinating with your departments to get effects that people will believe
EDITING
A lot can be accomplished with a simple and well-placed cut, cut to the actor finishing that action
i.e. you need to know in advance, where one shot ends and the other begins, so that you can piece them together
CINEMATOGRAPHY
Determining the angles you use to shoot from
SPECIAL MAKE-UP EFFECTS
Weapons are hard, use multiple shots and devices
Dummies used as stand-ins
Puppets combined with animatronic technology
And even use camera reversal
REVERSE PHOTOGRAPHY
Often easier
PRODUCTION DESIGN
Environment where your story takes place = a character unto itself
Walls closing in or reaching out
Rotating room
Hide part of body
Holes cut into set
Mirror gag
You need doubles of everything (including room)
Forced perspective
Camera perspective
Miniatures
COMPOSITING
Take separate layers of film and combine them into one