"I always battle with how much to reveal about myself," says Beyoncé in the new trailer for Life Is But a Dream, her upcoming autobiographical documentary, which she also directed. The 90-second teaser is chock full of intimate, behind-the-scenes footage of the pop star backstage, on stage, in the studio, at rehearsal, out and about and at home. In a voiceover, Beyoncé talks candidly about her career aspirations, pushing herself as an artist and balancing her celebrity with her natural human fears and anxieties, particularly at the outset of her pregnancy. Life Is But a Dream will premiere February 16th on HBO.