They needed another 20 mintues to fill plot holes
Unfortunately this brings up a major issue. The script seems to gloss over some important details to the story which leads to a lot of questionable motives for the characters. For example, halfway in, we are introduced to Benjamin Bratt who plays Roberto Alcaino, one of the main cash collectors for Pablo Escobar. He develops a relationship between Robert and his fake fiancé played by Diane Kruger would apparently never went undercover in her life. Towards the end, they set up a fake wedding which is used to bust all of the guilty parties involved in the cartel activities, except Escobar of course. The decision to arrest Roberto and his family is portrayed as a difficult decision for Mazur but you don’t really understand why that is. I mean sure there are a couple of scenes where they talk about each other’s backgrounds and he meets his wife and kid but Mazur is a career undercover agent and knew this was the end game from the start and it’s not like Alciano took a bullet for him at any point so the fact that he would personally feel remorse for this seems very unbelievable and out of character. Alcanio even admits to killing his friend and informant in the same car that Mazur was in before it crashed. I would like to think if someone sent a box of blood to my family’s house and my daughter was the first one to find it, I would want the arrest warrant sent in on same day shipping to get the job done. Speaking of his daughter, Mazur has a real family and a real wife but it seems like their sole purpose is to show up every 30 minutes, look disappointed, and somehow not get kidnapped at any point of the film.
https://societyreviews.wordpress.com/2016/07/13/the-infiltrator-review/