Co-produced by Ajay Devgn, who also stars in the film, the cast has names like Sonakshi Sinha, Sanjay Dutt and Juhi Chawla.
"Ajay Devgn is not an over the top actor. We have good Punjabi humour in the film. It is all about the dialogues and it is not a slapstick comedy. It is large than life but not over the top, " Dhir told.
SOS is a remake of Telugu movie "Maryada Ramanna" and Dhir said that except the plot, the rest has been changed.
It is coming out Nov 13 and Dhir said: "The zone is completely different in both the films. Only plots are same, otherwise both the films are completely different. 'Son Of Sardaar' is a complete entertainment package. It is a Diwali film completely. It has a combination of everything from comedy to romance to action."
A complaint has been filed in a court against Ajay for allegedly maligning and defaming Sikhs in SOS but Dhir clarified saying although the film revolves around Sikhs, it is not about Sikh religion.
"The film is not based on Sikh religion. It could have been a Parsi, a Gujarati or a Muslim... The film is about Punjabi environment. Since Punjabis are larger than life, so is the film, " he said.
SOS is Dhir's third directorial venture after "One Two Three" and "Atithi Tum Kab Jaoge?" His aim is to make films that entertain people.
"We try to make different kind of films, which must entertain people. People want to laugh while watching a comedy. 'Son Of Sardaar' is about Punjabi values but it is entertaining at the same time, " he said.
If the response to SOS is satisfactory, they might turn it into a series, says Dhir.
"If it is a hit, then we might make it again as a series. It all depends on how the film does at the box office. We will talk after the film is a hit, " he said.