As of june 1st, 2009 the specific visa in order to marry in France with a french citizen no longer exists.
If you plan to marry in France with a french citizen but do not intend to settle in france after the marriage, you should apply for a short stay visa for private visit in france (mariage). This visa, if granted, will not allow you to settle in France nor will be tranformed there. Please check the Short stay visa section for further informations.
If you plan to marry in France with a french citizen and plan to settle there as well, you should apply for a long stay visitor visa. When the marriage has been celebrated, your visa will be tranformed afterwards in "a spouse of french citizen" resident card at the french local government (prefecture). Please check the Long stay visa section for more informations.