Right, so the way these jokes works is this:

An article headline makes a claim about someone, but specifically doesn't mention who they are, because the context makes it obvious.

You respond with a "so (deliberate misinterpretation which also fits the description given)".

For example:

Headline: Movie about First Lady is as vacuous as its subject

Comment: So the Michelle Obama documentary is still on Netflix.

Pwnd libs: "..."

Zing! Eat that libs. Takedown complete.

Now, what you've failed to understand here is that the headline quite specifically mentions the name of the movie, "Melania", so it doesn't work as a flow. Because no-one in their right mind would think the Michelle Obama documentary is called "Melania". Imagine overhearing this conversation on the bus:

Person 1: I saw that "Melania" movie recently. It is as vacuous as its subject matter!

Person 2: So the Michelle Obama documentary is still on Netflix?

At best we're assuming that person 2 has misheard, and probably "has dementia" is higher up the list than "has just made a cutting remark".

Anyway, better luck next time.