Entertainment

Life in a Day

Judging by the Na tional Geographic doc “Life in a Day,” a lot of nothing happened on July 24, 2010. Director Kevin Macdonald and editor Joe Walker compiled the film from 80,000 videos shot on that day by ordinary folks and submitted to YouTube. The footage — from amateurish to slick — ranges from people eating, sleeping, shaving and sitting on the toilet to a baby being born via Caesarean section and a man speaking from his hospital bed after major heart surgery. It’s a clever concept that should play well on TV and the Internet. But as a big-screen movie, “Life in a Day” — which lists brothers Tony and Ridley Scott as producers — elicits a shrug and a question: Who cares?