I’m from the US and “better than a kick in the teeth” and “better than a poke in the eye” are both common around my area. Never heard the tree ones though.

Those aren’t film, they’re tape. Film is what’s in the camera or shown through a projector and are visible to the naked eye. VHS, Betamax, and video2000 are magnetic tape formats that aren’t viewable with the naked eye. Regardless, “on film” is still a universally acceptable term for “on the recorded video” no matter the format because terms stick around in industries

In your first examples, you are using female as an adjective. A female troop, a female Sargent, a male soldier. That’s usually fine. Even “that female cashier over there” is probably fine. However if you say “that female over there” or like you pointed out, “get over here right now, female” or really any other instance where female is used as a noun instead of an adjective, that’s where it becomes gross. It’s all about adjective vs noun. Adjective: usually fine. Noun: usually not.

In general, female is an adjective. It can be used as a noun, but generally shouldn’t be, at least when talking about humans. So you can say “my female colleague” or “a woman I work with”. You can say “the female mind” or “a woman’s brain.” You can say “a panel of female postal workers” or “a panel of women who work for the post office.” If you stick to the adjective/noun rule, you’ll come off far less offensive/gross sounding. Hope this helps.