In the storage closet that Michael is working in, next to paper and office related products, there is also a CornBaller, the dangerous kitchen device George Sr. used to sell, on one of the shelves.
ICE tells the family that George Sr. was killed by a guard, showing a picture of this guard. If you freeze-frame (or look fast enough), you see that the guard is Jeffrey Tambor, the actor playing George Sr.(!) and Oscar, with mustache and beard.
When the coffin is being spun around just before it is to be buried, a video camera (or something) appears mounted to the inside of the coffin lid. It is not there in the shots immediately before and after.
The poster that drops off the wall and Gob says to "just leave it" carries the slogan 'never give up'.
Buster comments that he used to have a shirt just like the one the child is wearing, and the narrator said that it was Buster's. In fact, Buster wore that shirt in the episode "Staff Infection".
During the silent film, one of the Mexicans said "Usted baila como un hombre que vive como mujer" and it was translated with subtitles as "You dance like a homosexual", but the correct translation would be "You dance like a man who lives like a woman".
In the shot when Lindsay and George Michael are driving off, followed by Ice, the shot was flipped. The license plate is mirrored, as is the church in the background.
Foreshadowing upcoming episodes:
When Buster sees his hand chair at Lupe's house, he says "I never thought I'd miss a hand this much" foreshadowing his loss of his hand.
Lupe says "Ay, ahora tengo que cuidar para retardo". This is translated on the screen as "So now I must take care of Buster", but actually means "So now I must take care of the retard."
But, interestingly, the word "retardo" does not exist in Spanish (you use "retrasado" or "débil"), so it must have been put there by the writers as a joke.
When Michael is telling Lindsay that Ice is actually a bounty hunter, there are two Mexicans on the steps behind them who keep disappearing and reappearing depending on the shot.
The picture of the proposed child of George Sr. and Kitty is provided by the "Mommy, What Will I Look Like?" company that Lindsay started.
Buster's oddly-shaped reproductive organs were first referenced in "Storming the Castle": Lucille comments that Lucille 2 changed him as a baby, to which Buster replied, "That's why she wasn't surprised".
While Lindsay is talking to the "bum", Tobias camouflages himself within a Cloud Mir advertisement. When Michael was dating Jessie, she got Lindsay a job with Cloud Mir Vodka.
When George Sr. is making his case to the Mexican police, you can see the top of his head is much whiter than the rest of his head. Suggesting that he kept his yarmulke on when he escaped?
A picture shows George Sr. cutting the ribbon at the opening of Orange County Prison in 1983, but according to a sign seen at the entrance of this same prison in the season 1 episode "Top Banana", the prison was established in 1903.
George Sr. used to have hair, but he lost it over time. However, when pictures are shown of him cutting ribbons, in 1963, he has no hair at all. Then, in 1973, he has a full head of hair!
When Michael presents his business model, the board members have changed places when the camera changes. The Asian man is at the end of the table, but a second later, after GOB sprays his pennies, he is sitting at the front of the table.
A newspaper is shown with a 3-column article on GOB's becoming president of The Bluth Company. However, while the first few sentences are about the Bluths, the 2nd and 3rd columns are from a story about the arrests of a mortician and hopsital employee for tampering with dead bodies.
Michael knows that his father has "a penchant for hiding valuable things in walls". Aside from the contract, this refers to George Sr. lining the walls of the banana stand with $250,000 in cash in "Top Banana".