The film is likely to poke, prod, stab, and sting at the ribs of its demographic until their hope for redemption runs out.

“Flag Day” is a modest but meaningful documentary.

Starts with great promise and a visually dynamic monster attack sequence. Then it settles into a mostly formulaic groove. 

A general wash of generalized muted feeling, where nothing coheres because nothing sharpens into focus.

“Stop! That! Train!” twists and turns and derails a few times.

While one‑dimensional family dynamics and an uneven final act hold it back, Hall’s anchored performance and Bravo’s atmospheric direction ensure the unease lingers.