In the Champions League final, when Munez is subbed in, he is clearly wearing a long sleeved jersey. Then there is a cut scene of him clapping, and he is wearing a short sleeve. Then the next cut, he is back in a long sleeve. The same goof happens when he misses a goal scoring opportunity.
When Santiago flies to Japan for the deal to join Real Madrid it is said that the deal needs to be done right away because the Transfer Window closes the next day. The Window closes on the last day of August about the same time The Spanish La Liga begin their season, so Real Madrid would not be in Japan on the day the Window closed. Historically, Real have played in Japan in July.
In Real Madrid's locker room, before the final match for the champions league title starts, you can see the LFP logo (Spanish football federation) on the sleeves of Real Madrid's t-shirts. It's totally inappropriate for a European tournament, for it is used only in domestic leagues and cups. Though both halves of the game are played with the right equipment, the Champions League won.
There's no explanation of how Santi's little step-brother knew in which bar Santiago and the Real Madrid players were hanging out, or how he managed to get the keys of the Lamborghini, get into it and drive it out of the parking lot.
During the 2nd half of the final match Real Madrid is playing with more than 11 players! Images are shown from at least Munez, Gavin Harris, Casillas, Beckham, Guti, Ronaldo, Raul, Zidane, Roberto Carlos, Robinho, Cicinho, Ramos, Baptista, Mejia, Gravesen plus the extras that play along Harris and Munez.