Hugh Grant turns his natural charm into a weapon in “Heretic,” a stimulating discussion of religion that emerges from a horror movie wrapper. Despite a second-half slide and feeling unbalanced, this is the rare movie that combines lots of squirting blood and elevated discussion of the ancient Egyptian god Horus. It centers on two young missionaries from The Church of Jesus Christ of Latter-day Saints entering Grant's home and then realizing he's not what he seems. Writer-directors Scott Beck and Bryan Wood — who also combined on “A Quiet Place” — have remarkably set us up for an unexpected theological debate here. The R-rated movie opens in theaters Friday.
