NYC may lose one of its most influential movie-reviewing sites. At midnight tonight, The Village Voice employees’ three-year contract at New York’s venerable alternative weekly newspaper expires, and they’ve authorized their union to call a strike if there’s no agreement. Writers and editors and reviewers have set up a Web site, The Real Voice, where they’ll run their work if there’s a walkout. The biggest disagreement involves cuts in health and retirement benefits proposed by the paper’s owner, Village Voice Media. The UAW Local 210, which represents the employees, says that “the union membership sees the quality of their medical coverage as the critical issue.” Employees also authorized strikes in 2005 and 2008 but agreed on new terms at the last minute.