During the wedding reception, Inez's father's band is playing. During the first few seconds of the scene, you can clearly see and hear him singing the lead. But, during the next few seconds, his voice is heard but his mouth is not moving.
Percy says he edits a single 1 second video clip from each day to form a video montage. When his dad, Carl, watches the video later, there are clearly multiple clips from the same day, most noticeable with the New Orleans clips. There are several single seconds of them in New Orleans, but appear to be from the same day.
When Percy sets up a Twitter account for Carl, the two of them decide on a handle (screen name) for him, but no password is mentioned. One cannot use an account for any electronic service without first establishing a password.
When Percy creates Carl's Twitter account they settle on the name @ChefCarlCasper. Yet Carl's very first tweet, which he thought was a private message to Ramsey Michel, was shown to have been posted by @CasperCarl. For the remainder of the movie his Tweets correctly identified him as @ChefCarlCasper.
When Inez is talking with her father in the restaurant, the position of her hands changes between shots. In the reverse shot, she has her hands spread over the table, before cutting to her with her arms folded.
When on Miami Beach with Russel Peters, there is an actor in the far back of the crowd wearing all black and aviator sunglasses.He pops in and out between cuts, and finally ends up right next to Carl as the third person in the picture being taken. He is foreign actor Safi, who was making a subtle cameo as a friend of the production.
There is some disconnect with the positioning of the sleeping Percy and his grandpa. First he is slumped on the seat with grandpa's arm over him and next shot he is snuggled on grandpa's chest and a little while later he is even higher on grandpa.
During the first truck stop, Martin says over the loud speaker "Best Cuban food in all of South Beach. If you need it more authentic swim 90 miles that way" indicating Cuba. Cuba is 90 miles away from Key West (famous for being the most southern point in America, 90 miles from Cuba). They clearly say just before and in the following scenes with the Police Officer that they are on South Beach, Miami, around 150 miles from Key West, and over 200 miles from Cuba.