Goofs

Near the end of the movie when Anna Kendrick is lying on the white bench, in one shot you can see her bare feet, then in the very next shot she wears pink flipflops, and in the last shot her feet are bare again.Also, when she tackles Zac Efron on the picnic bench, her bare foot can be seen. In the next shot, she is wearing pink flipflops.

When everyone was planning to continue with the wedding, Jeanie's face went from bloody scrapes on cheek and forehead - to nothing except on lip - to back to scrapes on cheek and forehead again.

Jeane's fiance is standing in the bar wearing a blue shirt with a pink lei. The camera rotates to several other people coming back to him, still in the blue shirt, but no lei.

(at 1 hour and 29 minutes, scene 22) when Alice was kissing on top of Dave, one champagne glass was standing, another one was lying down. after a second or two, both of them moved to different locations.

In the 45th minute Tatiana is in the pool with a drink, then the drink disappears from her hand.

In the 20th minute Mike check Tatiana's pulse before starting CPR. As she was faking and had a pulse, she would not need CPR.

When Alice is dancing on the table because Rihanna came on, the version of "Only Girl" playing is clearly not the original and not sung by Rihanna. Alice as a devoted fan would have noticed this.

In the 8th minute, the dartboard in the kitchen is positioned far too high on the wall.

Near the end, when Alice deletes her wedding video from her iPhone, the notification bar says she is in New York, although she is supposed to be Hawaii.

When the group goes on the Jurassic Park ATV excursion, they are clearly supposed to be in Hawaii, yet the Golden Gate Bridge stands proudly in the background.