Mena Suvari is calling it quits on her 18-month marriage to concert producer Simone Sestito. An attorney for the actress, 32, filed divorce papers on her behalf on Friday in L.A. County Superior Court, her rep confirms to PEOPLE. According to court papers obtained by PEOPLE, Suvari cited "irreconcilable differences"
and asked that Sestito receive no spousal support. She indicated that the pair's separation date was Nov. 1, 2011. Suvari and Sestito married in June 2010 in Italy, holding a private church in the Vatican City in what the pair called a "romantic" wedding. The couple met at the Toronto Film Festival in 2007 and were engaged in 2008.