The Point

Here's a screen capture from the trailer for a movie called "The Objective", which looks like kind of a piece of crap, or at least not the sort of thing I'd watch, even if it were free.

Last I checked, "phenomena" was still plural. "Bacteria" and "data" might be lost causes, but both "phenomenon" as the singular and "phenomena" as the plural are still alive and well in the language. It's not even a tricky one, like "octopus", which would be "octopodes" in Greek but, since most of us do not speak Greek as our mother tongue here in North America, is merely "octopuses" (and not "octopi": Fowler's Modern English Usage states that "the only acceptable plural in English is octopuses," and that octopi is misconceived and octopodes pedantic).

Mixing up the singular and plural of an ordinary everyday noun, something which even six-year-olds can reliably get right, makes you look stupid.