Disney’s live-action remake of “The Little Mermaid” is beginning its box office swim with $10.3 million in previews. It opens in 4,320 theaters on Friday. Thursday’s preview haul is the seventh-highest ever for a G- or PG-rated movie. “The Little Mermaid” also picked up $850,000 from Wednesday early access screenings. Starring singer and actor Halle […]