“West Side Story” (***1/2 out of four) was a sweeping adaptation of the 1957 musical about the rivalry between two street gangs the Jets and the Sharks and how a forbidden love affair (Ansel Elgort and Rachel Zegler) both tears them apart and at the same time unifies them in rivalry and bluster. Director Steven Spielberg reminds you again why he’s a blockbuster director as he weaves together first-rate musical numbers with the magic and uplift of the original in a story that never fails to entertain and carry you along. One of the rare contemporary films which evokes and echoes the Golden Era of Hollywood.