Screens on the Long Walk and in Alexandra Gardens will display the wedding ceremony in St George's Chapel and the following procession as Prince Harry and Meghan Markle travel through the town on Saturday, May 19.
The forthcoming film, called "Harry & Meghan: A Royal Romance", will focus on the couple's budding romance, specifically "the pair's courtship, from their first date to the media circus that ensued once word of their relationship got out", according to CNN.
Royal commentator Richard Fitzwilliams said Harry and Meghan might return the favour, "if they know each other well", saying there would be no questioning of the American being overshadowed on her big day. Her kovie credits include Horrible Bosses, Remember Me and Dysfunctional Friends. I'm not going to do the bridesmaid dress.
A prominent Indian-origin chef and social entrepreneur said she squealed with joy when she opened a royal envelope that turned out to be her invitation to Prince Harry and Meghan Markle's wedding at Windsor Castle next month.
And Mr Fitzwilliams said Harry and Meghan are unlikely to be under obligation to invite Pippa - or any expected guest for that matter.
In terms of the style she thinks Markle will go for, "I think that she'll wear a very fitted gown that flares away from her mid-thigh, [with] a handsome V neckline, long lace sleeves, buttons from the wrist to the elbow... all attractive couture touches".
United States host James Cordon also revealed this week that Victoria and David Beckham are going.
Markle reportedly went to the VFS Global UK Visa Application Centre in Chicago and was there for about 10 minutes to finalize her visa, TMZ reported. "It was a complete surprise", said Ginday, adding that she was "over the moon", Reuters reported.