In this contemporary remake, “Beaches” follows the serendipitous meeting of two young girls on the Venice Boardwalk, who, though worlds apart in lifestyle, embark on unexpected and lifelong friendship. CC (Idina Menzel) is an aspiring singer trying to make it in Los Angeles until she is discovered by a director who gives her her first big shot. Hillary (Nia Long) is the daughter of a prominent civil rights lawyer who struggles to find her own destiny. Their friendship—even with its ups and downs—sustains them for decades.