When Flor and her daughter are moving out, the green dress she is wearing seems to go from wet to dry to wet again.
After Deborah ask the man washing cars in Malibu to translate for Flor and he pauses to put on a button up shirt before he translates, as he translates in one shot his shirt is askew because he has buttoned it wrong. In the next shot his shirt is buttoned correctly.
When John Clasky is making his late night sandwich, in the first shot the fried egg is on top of the bacon, and the lettuce is on top, in the next shot, the egg is on top of the lettuce.
As Cristina "blossoms" Flor needs to get only a day job, but her two jobs prior to that are at a travel agency and at a dry cleaners, both of which would have been during the day.
Flor consistently speaks with a Castilian accent, not a Mexican one.
After Deborah comes in from running, she is in a sports bra and bike shorts. When she climbs on top of John, you can clearly see that she still has her shorts on when they have sex.