When Pete is testing Ricki on the PLU codes for various items, she incorrectly states that organic milk is "94011" which is the code for organic bananas. The code she states for bananas is incorrect as well.
Ricki mentions she is planning to file for Chapter 11 (alluding to Chapter 11 bankruptcy). Chapter 11 is typically for businesses, organizations, and other entities, while Chapter 7 or 13 are for individuals.
In the final wedding reception scene, Ricki state s her son's boyfriend resembles Bruce Lee, but her son protests that he(the boyfriend) "isn't even Chinese". Ricki's boyfriend state's in defense that Bruce Lee is also not Chinese and was actually born in San Francisco, but he was actually born in Hong Kong.