The amount of red wine spilled on Jaclyn's wedding dress varies within scenes on the same day.
The amount of social media views for the wedding proposal is inconsistent: It's 1,014,731 views before the wedding when Jaclyn's makeup is being applied, but it's only 1,000.000 views after the wedding when she wishes for her first do-over.
Peter says he and Jaclyn met 5 months earlier when she was designing the new children's wing at the hospital. The movie starts with Kate and Jaclyn standing before the new wing when Peter proposes. It takes longer than 5 months to design and build something this large.
Liebert and Reeser play sisters but they look nothing alike.
When Jaclyn and Peter leave the reception on wedding day 2 to go to their cabin, it is bright sunshine outside. By the time they reach their cabin a short distance away, it is pitch black outside.
At the wedding toast, guests toast with any random drink on the table and there are a variety of colors of beverages that can be seen. Especially, that the groom's mother wanted their wedding photos published in the high-profile wedding section of the LA Times, she would have done a classic champagne toast, or at least a signature beverage, instead of something random.
Every time Peter opens the door to the bridal suite/cabin, he carries Jaclyn over the threshold, then he goes out on the side balcony and she goes to bed....but no one ever shuts the door.
The movie takes place on Valentine's day. However, no one wears a winter coat, they swim in a lake and the trees still have leaves on them.
During the first time that Jaclyn radically changes the wedding, there is pop music of a simple drum machine and vocals and people are grooving on the dance floor. But in the same moment, a classical string quartet is visibly playing three violins and a cello just a few feet away, except there is no audio heard for their playing at all.
On the wedding day where Jaclyn and Kate go shopping for cakes and gowns, Margaret, Gerry and Kenneth do not come to Jaclyn's room immediately after she receives her wake-up call like they should have.
When Jaclyn asks Max to take her away from the cabin (day 4) she has on the sheer black dress she awakens each day. When they are at the lake later she is wearing pants and a blouse.