The two started off as an unlikely pair on the afternoon series Katorse last year. Erich and Enchong are currently paired together in ABS-CBN's primetime series Magkaribal.
I Do gives the two stars a break from heavy drama as they topbill a light romantic comedy. Completing the cast are Pokwang, Melai Cantiveros, Jason Francisco, Dennis Padilla and Nash Aguas.
(CLICK HERE to read more about this movie, which will open on September 29)