When Ricky Tomlinson's character is interviewing Bradley Walsh's character, it can clearly be seen that the Colchester United team picture on the wall has been doctored to include Tomlinson, Walsh and Phillip Jackson's characters. However, the line-up info underneath the picture still contains the names of the genuine incumbents, including Roy McDonagh (player/manager).
How am I supposed to know. Just do whatever you want.
La Bombonera stadium (Estadio Alberto J. Armando), where the game against Mexico is placed, is located in Buenos Aires, Argentina, not Brazil. It's owned by Boca Juniors.