As evident by its name, the movie is a sequel to 'Once Upon A Time In Mumbaai' that was released in 2010.
The prequel established the onset of the great upcoming underworld don Shoaib Khan's (Emraan Hashmi) reign by making him the undisputed leader once he assassinated his mentor and senior Sultan Mirza (Ajay Devgn). It was made pretty clear then and there that unlike his mentor, the new don was in no mood to follow any code of principle or sharing. The sequel starts with Shoaib (Akshay Kumar) being shown as the ruthless, mirthless, powerful don, who is well settled in the middle east and controls his Indian and other overseas operations with his loyal aid Javed (Sarfaraz Khan). Also, he unabashedly indulges in womanizing activities.
Honestly speaking, while watching such Dawood influenced movies (Company, D-Day, Shootout At Wadala, OUATIM, OUATIMD), you don't find any exclusive difference amongst them. In one or the other manner, they end up showing you the making and toughening of the anti social, his power and action, his softer side with a particular love interest, some hard core cop action and last but not the least, the culture, lingo and lifestyle of the 80's and early 90's.
What has actually stood out in this movie is the presence of Akshay Kumar. Actually, there are two heroes in the film - Akshay and his Dialogues. He mouths them unabashedly throughout the movie and almost all of them throw the required punch. He has also very well adopted the lean, mean and suave physicality and attitude of a great don. In fact you can say, it's very Italian. Also, he has very well played the role of an emotionless womanizer and a love torn angry young man. It is a fresh change to see him do method acting. Otherwise, normally you associate him with punjabi fashion wear and loud movies with long legged lasses.
Sonakhshi's character demanded someone who is beautiful, innocent, conscious and also forthcoming and robust. Needless to say, that she has suited the role very well. Also, she has looked beautiful and acted well. Imraan has this natural look and body language of someone who is very simple and honest. So, in spite of his cool presence, you do think that an Emraan Hashmi or a Ranveer Singh would have fitted the bill better. Mahesh Manjrekar has derived his own style of acting and his performance can be well speculated in advance. Sonali Bendre is a revelation in her very small but intense role. Sophie Choudry has managed to look glamorous without looking voluptuous or over the top. Sarfaraz Khan and Pitobash Tripathy have also acted well.