Sound of My Voice (2011)

Sound of My Voice offers promise and pay off at the same time. Star and writer Brit Marling is having a rare double-whammy of a debut.

Sound of My Voice doesn't follow through on everything it sets up, yet it has a hushed and revealing psycho-intensity. It also has an oh-wow Twilight Zone ending that truly made me go, ''Oh, wow.''

Like "Martha Marcy May Marlene," Sound Of My Voice plausibly demonstrates how someone's sense of self and certainty can be eroded, and like "Another Earth," it was co-written by actress Brit Marling, a melancholy, luminous presence as the group's leader.

Now Batmanglij and Marling deliver another terrific and engrossing venture into speculative fiction, Sound of My Voice.

Two documentary filmmakers infiltrate a mysterious cult, only to find themselves drawn into the leader's insidious grip, in the taut, compelling low-budget feature Sound of My Voice.