Others can give far more inside advice than I ... but if you're calling it an "action" script, I'm betting others will warn you about having two full pages of talk-not-action (imagine a reader, they see one full page of talking heads, they turn the page and see another full page of talking heads ... if they're taking on faith that it's page-a-minute ...
three minutes is a long time)
So others know better than I. But I feel safe in suggesting that "dialogue" can still be dramatic and never mere "talking heads"
Talking heads in a room isn't the same as talking heads locked in a room with a bomb hidden ticking under the rug, as Hitchcock would suggest.
There's always dramatic context. Imagine a murder trial, where one lawyer is dramatically ripping apart a witness's testamony, or revealing a grand dramatic mystery ... we may savour page after page of gripping character dialogue and conflict!
And as much as people complain about Exposition ... I've read that you get ONE scene where the audience is happy to hear characters talking, if you're telling the audience something they really want to hear to set up the story.
So ... there's my two cents. There are others here who'll give you five dollah bills, soon enuf!
