Fans snapped pictures of stars David Tennant and Michael Sheen as they prepared to film scenes around the Hippodrome Cinema
They were joined by Dame Siân Phillips, while extras wearing feather-adorned caps and 1920s flapper-style dresses walked around the set.
The show is jointly produced by Amazon Studios and BBC Studios.
Much of the shooting has taken place at a film studio in Bathgate.
Good Omens was created and written by Neil Gaiman.
Photographer Michael Gillen spent the day in Bo’ness to capture the excitement, and get a glimpse behind the cameras.
13. Good Omens 2 filming in Bo'ness
Heading on to the set in Bo'ness is Michael Sheen who plays Aziraphaleas Aziraphale. Photo: Michael Gillen
14. Good Omens 2 filming in Bo'ness
Members of the public turned out to catch a glimpse of the stars - and get a look at behind the scenes. Photo: Michael Gillen
16. Good Omens 2 filming in Bo'ness
Members of the public grab a decent vantage point to watch the proceedings as film crew and stars begin to arrive in town Photo: Michael Gillen