Bill Condon , director of “Dreamgirls,” “Kiss of the Spider Woman” and the $1.26 billion-grossing “Beauty and the Beast,” knows how to film a musical number. That made him a natural choice to helm the “The Road Home,” starring Cynthia Erivo, Thabo Rametsi and Guy Pearce. Palisades Park Pictures launched international sales at Cannes. It’s the story of how Paul Simon and numerous South African artists navigated anti-apartheid boycotts to create one of the best-selling albums — and most