: "And what is wrong livelihood? Scheming, persuading, hinting, belittling, & pursuing gain with gain."
: "A lay follower should not engage in five types of business. Which five? Business in weapons, business in human beings, business in meat, business in intoxicants, and business in poison."
-3 suggest that soldiering and acting both lead to certain sorts of hell-states.
Taking all of this together, it really depends on whether there's right intention. The AN passage suggests that there are only five sorts of business which are impossible to engage in with right intention. The MN passage seems to be overall advice; it's possible to see entertainment as a form of intoxication, which might put the SN passages in a helpful perspective, but this would tend to support a criticism of all four of those occupational categories.
Remembering that for someone who has developed the Path there is no danger that a sudden death without mindfulness necessarily leads to horrible states, one would expect that an actor, say, who practiced the Dhamma would eventually begin to outweigh their "fate" per the SN passage, so we must remain focused on the fact that intention over time is at the crux of discerning right & wrong livelihood.