When Mia gives Jake all the old birthday cards and he goes to reading them, & none of them had Postmarks. Just brand new stamps and envelopes.
When Jake & Becca & Zoey leaving the store you see Becca put the key in to lock the store door the lock does not turn.
When Reggie calls Bo, to get to him to come out with him, you can see Crew, lights & camera in Bo's glasses.