"You are to have Son."
"But that's not possible." 🤦 That's not what she said! She said: "How shall this be done, because I know not man" (Lk. 2:34).

The trailer doesn't quote everything. In context, she says (@44:57): "But that's not possible. I can't have a child.", which isn't too bad, but still not 100% accurate:

Who's there? What do you want?
Don't be afraid, Mary.  You have found favor… with God.
What-- What do you mean?
You are to become a mother and have a son. He will reign over the house of David.
But that's not possible. I can't have a child.
All things are possible…with God. You will name him Jesus. And all the world will know him, Mary. For you are blessed among women.
Let it be me.

And St. Joseph says: "You've laid with a man." 🤦 St. Joseph was an honest man who didn't suspect the holiest woman God ever created would've committed adultery!

Actually, it was St. Joachim's character who said that. He was initially upset, but was portrayed as forgiving his daughter:

What they say about us?
But it's not true.
Papa, they don't know the truth.
Tell me the truth then. You've laid with a man.
No! Never.
How is this possible?
I told you. It was the spirit.

The wedding scene is shown after she was shown pregnant. 🤦
She was already married at the Annunciation!

She was betrothed, yes (which is what we'd call a valid but unconsummated marriage), the ceremony of which is portrayed first (@40:50); then the Annunciation (@44:27), then the Visitation (@51:11), then the nuptials (1:02:29), "the solemn entry of the bride into her husband’s home amidst great festivities and rejoicing" (Llamera, O.P. p. 19), which seems correct (though I don't know how accurate that ceremony itself was portrayed). That means at least 3 months between her betrothal and nuptials (which seems plausible, though I don't know how long after betrothals nuptials occurred back then).

(@50:19 St. Anne's character: "I want you to go to Aunt [sic; though συγγενής can mean any blood relative] Elizabeth in Ein Karem. She is seven [6! cf. Lk. 1:36] months with child")

St. Joseph as portrayed as angry ("Joseph, he's angry. -He needs to calm down. -I must speak to him." @58:23), punching his coworkers in rebuilding the Temple (I've never heard any mystics say he helped rebuild the Temple…). The angel isn't portrayed appearing to him in his sleep, either times (to tell him not to be afraid to take his wife or to flee to Egypt).

St. Joseph is portrayed as not knowing why there are so many people in Bethlehem. 🤦

So, besides the painful childbirth, inaccuracies, and "artistic license" (showing her being tempted and St. Gabriel vs. Satan), this film isn't too bad. The portrayal of her time in the Temple conformed somewhat to what the mystics think (except they think she entered at 5 or 6), but she was portrayed as being kicked out of the Temple when found pregnant, but it seems she would've definitively left before her espousal.

And they show her in pain giving birth! She wouldn't've been in pain; painful childbirth is consequent of Original Sin (Gen. 3:16), and she was completely free of all sin.

They could've done a cinematographic portrayal inspired by William Blake's theologically accurate depiction  (except that his depicts St. Elizabeth in Bethlehem...).

St. Jerome didn't even think she would've had midwives, either.

It shows her presentation in the Temple, but the rest of the portrayal is blasphemous:

"You are to have Son."
"But that's not possible." 🤦 That's not what she said! She said: "How shall this be done, because I know not man" (Lk. 2:34).

And St. Joseph says: "You've laid with a man." 🤦 St. Joseph was an honest man who didn't suspect the holiest woman God ever created would've committed adultery!

The wedding scene is shown after she was shown pregnant. 🤦
She was already married at the Annunciation!

And they show her in pain giving birth! She wouldn't've been in pain; painful childbirth is consequent of Original Sin (Gen. 3:16), and she was completely free of all sin.

The pain during childbirth element also militates against the Catholic Dogma of Mary's perpetual virginity "before, during, and after childbirth".

The Church Fathers eloquently explained it thusly: that Our Lord came into this world in a similar manner to how he passed through the locked door of the Cenacle after His Resurrection. It was miraculous, and another privilege of Our Lady.

Regarding this movie, however, I wouldn't watch it if it were free. Not even on a dare. Not even to "inform myself" with element(s) of pop culture and current culture -- and that's saying something, because I've watched a LOT of things for this reason.
But I draw the line at blasphemous movies. I've still never read or seen The Da Vinci Code.

Appreciate your effort to endure the trailer and give the analysis, but I would just not watch it, and if allowed there should be a protest.