During the confrontation between Lalita and Darcy after the L.A. wedding, Lalita's earrings change. First they match, then one is longer than the other and a slightly different style.
When Maya is dancing the cobra dance, the position of her trousers changes - sometimes they are below her navel and sometimes above.
When Darcy and Lalilta are sitting in the Mexican restaurant while Lalita's family is in California, she has one sip of her margarita and places in on the table. When the camera switches to face Darcy, the drink is still visible as if in her hand.
When the guys started singing and dancing at the party before the wedding, Lucky was standing with her father, but when the girls were going down the stairs, she was with them.
The indoor shots of Darcy's hotel in Beverly Hills is actually the interior of the Biltmore Hotel in downtown Los Angeles.
Lalita criticises both Darcy and Mr. Kohli for having a list of attributes that they want in a potential wife, then she does an entire musical dance number about her own list of attributes for a potential husband.
When Lalita's mother asks Balraj to find Lalita 'a nice Indian husband' right in front of Darcy, Lalita and Darcy exchange lengthy dismayed looks as they realise that Lalita's parents don't view Darcy as a potential marriage match. Yet in the next scene, her parents smile and laugh and openly signal permission when Darcy looks to them for permission to embrace Lalita. Their sudden total change of heart is never explained.