From “The Morning Call” TV Watchers blog:
Visitors to Horseshoe Falls at Niagara Falls, N.Y., were pleasantly surprised last Thursday when they walked onto the set of NBC-TV10’s “The Office” and found actors John Krasinski and Jenna Fischer taping a scene for the upcoming season’s fourth episode, according to The Buffalo News…
Fischer’s makeup was waterproof, thank goodness, to keep her looking fresh on her “wedding day.”…
Filming at Niagara Falls was a challenge for the cast and crew, which typically films in a studio in Los Angeles. They had to abandon high-definition cameras, so HD viewers, be prepared for a slightly different look on your set that night. Instead, a 16mm camera with a spinning device that keeps water droplets of the lens was used.