Judge Scott Gordon ruled today Polanski must appear in a Los Angeles court if he expects to have his four-decade-old case resolved.
Gordon's ruling follows a fervent request by Samantha Geimer to end a "40-year sentence" she says was imposed on both perpetrator and victim.
Polanski pleaded guilty to having unlawful sex with Geimer when she was 13. He fled the country on the eve of sentencing in 1978.
Polanski's attorneys have failed to persuade judges to sentence him in absentia for the 42 days he was incarcerated for psychological testing before he fled.