“I think Vlad was christian...”
So was his father. Dad was awarded with admission into the order of the Dragon for his defense of Christianity from Muslim invaders - a very high honor among European royalty.
Vlad highlighted that honor by calling himself Dracula. Draco is dragon in Latin, and in his language, the ula at the end indicated “son of”
I saw the movie, and liked it. It seemed to me that Christianity was treated favorably. The priest was a righteous character, and the bad guy (the old vampire) was non/anti-christian.
Muslims do get negatively portrayed, and unfairly blamed for imprisoning and torturing Vlad as a boy - which was actually done by family, friends and Christian political rivals. It does highlight the Muslim Turks practice of conscripting Christian boys to be raised as Muslim soldiers (Janissaries).
In real history, he was betrayed by the boyars and given up to the moslems. The boyars were the landed gentry who thought they could pay off the Turks for peace. Our boyars, the CLintons and their progressive ilk should take notes.