On the way back from Joshua Tree, Turtle's pale blue hat starts out as a Kangol hat but a few moments later the hat is a New York Yankees hat.
At the breakfast scene, E is not wearing sunglasses at the start; the next scene, he is wearing sunglasses and takes a bite of food; flash to the next scene he is not wearing sunglasses again and the plate of food changes.
When Ari is talking with Lloyd, Lloyd and Tom are walking in Costco - they pass the same water bottles at different points in the conversation.
Eric is the one who brings the mushrooms, but suddenly Drama has a mushroom, peanut butter and jelly sandwich already prepared for E.
When Ari is on the phone with Alan (Alan on the golf course) at the 1:37 minute mark, you can see the script taped to the steering wheel, with highlights likely of Ari's (Piven's) lines.