I Do (2012)

I Do is an American drama film, released in 2012. Directed by Glenn Gaylord and written by David W. Ross, the film stars Ross as Jack Edwards, a gay artist from England living and working in New York City. Following the death of his brother Peter (Grant Bowler), he enters into a green card marriage with his lesbian best friend Ali (Jamie-Lynn Sigler) so that he can stay in the country to help his widowed sister-in-law Mya (Alicia Witt), but is then forced to confront the unequal status of same-sex marriage as he meets and falls in love with Mano (Maurice Compte).

More at Wikipedia.