The `30 Rock` actor tied the knot with the yoga instructor on 30.06.12 at St. Patrick`s Old Cathedral in New York, in a ceremony watched by their close friends and family.
Friend Matthew Hiltzik told PEOPLE: "HilariaThomas and AlecBaldwin were married this evening at St. Patrick`s Old Cathedral in New York City with family and friends sharing in the joy of the occasion."
The bride - who`ll now take Alec`s surname - wore a silk magnolia trumpet Amsale gown with cap sleeves and a keyhole back neckline accented with crystal buttons, while Alec donned a tuxedo by Tom Ford.
Alec`s 16-year-old daughter, Ireland, with ex-wife Kim Bassinger, was also dressed in an Amsale outfit as was Hilaria`s mother.
The ceremony, which was conducted in English with readings in Spanish in homage to Hilaria`s Spanish upbringing and other guests included Tina Fey, his brothers Stephen and Billy Baldwin, Woody Allen and Robert Kennedy Jr.
The church is where Francis Ford Coppola filmed the famous baptism scene in `The Godfather`, in which Al Pacino`s renunciation of Satan was intercut with the massacre of the Corleone family`s enemies.
Martin Scorsese also used the church`s walled graveyard for a scene in `Mean Streets` as well as a location in `Gangs of New York`.
Alec - who has been dating 28-year-old Hilaria for around a year - recently revealed he was considering having children with Hilaria.
The 54-year-old star said: "Have I thought about having more kids? Oh sure, that would be great, that would be heaven, that would be fantastic."