When Sally is driving her car before & after her phone call, she drives past the same garbage can twice. The second time the car appears to fish tail out of control.
Obvious stunt doubles for Stefanie and RJ in the mattress jump, and for RJ in the salon fight.
When Max goes see the loan shark he is supposed to use an Italian accent. (The closed captioning even says so.) However, out of an entire conversation of several sentences, Max only pronounces one word with what appears to be an Italian accent. The rest is spoken in flawless---and grammatically correct---American English.
Jonathan and Jennifer call Barry at the salon, knowing that Micklin had listening devices planted there.