4 minute AI video creation

I have a scripted comedy sketch (~800 words, dialogue-driven) set in a medieval English hall, 1387. Think SNL's "Washington's Dream" sketch — a lord at his dining table making deadpan prophecies about the future while his baffled household asks questions. Four main characters, one location, mostly dialogue with reaction shots. What I'd need: - Full version: roughly 3.5–4.5 mins, AI-generated video with lip-synced dialogue - Plus a short cut (60–90 secs) edited from the same material for Reels discovery - 9:16 vertical, 1080×1920, MP4 — faces/text kept centre-frame clear of IG's UI zones - Consistent characters across all shots (happy to approve character stills before you generate the scenes) - Comedic timing matters — the script has pauses and reaction beats marked, so I'd want the pacing to breathe rather than wall-to-wall dialogue Happy to share the full script once we've agreed the basics. Thanks!