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I would suggest Fuji NPH 400 outdoor, and even NPZ 800 indoor.
The advantage is that being high sensitivity films they decrease a little bit contrast, which makes it easier to get correctly exposed both groom (black) and bride (white dress).
If you do not enlarge excesively, grain is not a big issue.
As Wilko said, avoid vivid colours. Else wedding guests have a tendency to become red-faced, especially after the first drinks and dancing. I would also consider B&W in addition which is much more forgiving in this respect.
In a wedding I use Nikon D700 for the crap (i.e. bride's home, church, reception) and add my Hasselblad + Kodak Portra 160NC or 400NC for the 'shoot'...if shooting B/W then T-Max 400 is an amazing film...spectacular
As I remember TMAX 3200 does not exist in 120. Once I baught in 70mmx30m but I returned it as the film was unperfored.
Anyway I use "new"TMAX 400 at 1000 (processed at 1600 asa) and get good result on a 25x25cm picture on a 30x40cm paper. TMAX 400 does not existe in 220.