Some experiments with Veo 3.1 through Google Flow. It's the best video generator for WAM that I've used so far (not tried SORA 2), though not perfect. (And flaws in videos, even if minor compared to the flaws in still image generation a couple of years ago, do make it hard to suspend disbelief). What it sometimes has trouble with is sequencing - people get messy before the gunge hits them, or say they've tripped long before they actually lose their balance.
When I tried feeding it frames in portrait format, it expanded them to landscape video, with the occasional visual glitch en route.
The dialogue generation's good when it works, particularly for infuriated "My best suit's ruined!" complaints.