Performance rather than Acting, I'd say, along with a good possibility of Stage Combat* (if they need to stage a fight) for the performers.
Photography seems a shoo-in for those working the cameras and other recording devices; I'd use Electronics Operation (Media) for the editing of the footage. I'd probably have the director using Professional Skill (Director) for setting up the action and knowing how to angle the cameras for the best angles.
For a sensie, the Performance, Stage Combat, Electronics Operation (Media), and Professional Skill (Director) are probably unchanged, though I'm unsure whether Photography covers sensie recorders or not.
* critical failure on Stage Combat would be having to tell the stunt man, "
This is where you fall down." :)
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"Life ... is an Oreo cookie." - J'onn J'onzz, 1991
"But mom, I don't wanna go back in the dungeon!"
The GURPS Marvel Universe Reboot Project
A-G,
H-R, and
S-Z, and its
not-a-wiki-really web adaptation.
Ranoc, a Muskets-and-Magery Renaissance Fantasy Setting