The first trailer was released in late August and its filming cost nearly Rs. 400 million. The film released on 20 October 2006 on the festive weekend of Diwali/Eid. The DVD for the film released on 15 December 2006.
Suhaan Kapoor (Salman Khan) and Piya Goyal (Preity Zinta) fall in love in college and elope. However, he has to keep his marriage a secret in order to further his career as a movie star and, when his career hits a low, he returns home to find out that she has left him. She does not answer his calls or mails, and he soon receives divorce papers in the mail.
The film begins when Suhaan receives a notice saying his ex-wife Piya, who has settled in New York, wants a divorce settlement of 5 million rupees, because of his failure to make his alimony payments due to his poor financial condition. Suhaan appeals to his uncle Boney Kapoor (Anupam Kher), a midget lawyer, for help. While they are trying to figure out a solution, Agastya Rao (Akshay Kumar) lands at their doorstep searching for Piya. He reveals to them that he fell in love with Piya during his college days but could not express his love to her because she was in love with someone else, unaware that the person he lost her to was Suhaan. Piya had ignored Agastya then, a nerd, a nobody, and even broke his heart by blowing him off to be with Suhaan at a concert that Agastya had taken her to. A heartbroken Agastya left the college as a result and eventually wound up in Houston working for NASA.
Suhaan and Boney Kapoor hatch a plan to get Agastya and Piya together, so that Suhaan need not pay alimony to Piya and Agastya gets the girl of his dreams. Suhaan accompanies Agastya to New York City to help Agastya win Piya over. They rent an apartment opposite Piya's and watch her every move, literally, using telescopes, binoculars, and surveillance techniques. Using a headset, Suhaan feeds Agastya lines to woo Piya with and eventually succeeds in getting Piya and Agastya together.
One night, Suhaan finds out Piya has a baby girl, Suhaan 's daughter. He realizes that she left him since she did not want her and the baby to ruin Suhaan 's film career. Suhaan realizes his mistake and tries to make amends and start a new life with Piya and his daughter, Mubshara . Unfortunately, before he can act, Piya gets engaged to Agastya.
It later emerges that Piya's brother, Vishal(Nawab Shah), had been hiding letters that Suhaan wrote to her and was responsible for initiating the divorce process. Agastya realizes that Piya is still in love with Suhaan and not him; so he reveals the truth and tells her to be with Suhaan. Piya flies back to India where Suhaan is trying to find work as a small-time actor. They express their mutual love, reuniting their broken family.
A few years later, Agastya is on a NASA space shuttle and initiates a video conference with Suhaan and Piya (on Suhaan 's Birthday). He introduces them to his new girlfriend who looks strikingly similar to Piya.Akshay Kumar as Agastya Rao, a NASA astronaut who was friends with Pia in college
Salman Khan as Suhaan Kapoor, a famous superstar who has to pay The alimony for his divorce with Pia..
Preity Zinta as piya Goyal Kapoor, Suhaan's ex-wife who divorced him for leaving her behind.
Anupam Kher as Boney Kapoor (Suhaan's lawyer & Uncle) / New York Cafe Owner (Dual Role)
Aman Verma as Zubin, piya's friend
Nawab Shah as Vishal Goyal, piya's brother who is responsible for piya and Suhaan's divorce.
Javed Sheikh as Mr. Samrat Goyal
Soni Razdan Mrs. Goyal
Preity Zinta as Preity Zintakova (Special Appearance)
Anupam Kher is playing a role of a dwarf for the first time in his career.
Filming started in New York City on 1 September 2005 and then moved to Mumbai. The male leads were written for Salman Khan and Shahrukh Khan, however the latter declined the role of Agastya Rao, and so Akshay Kumar was roped in.
The music for the film was released on 6 September 2006. The music is composed by Anu Malik and includes a few playback singers forming the former contestants of Indian Idol. Lyrics are penned by Gulzar. According to the Indian trade website Box Office India, with around 12,50,000 units sold, this film's soundtrack album was the year's eighth highest-selling.
Jaan-E-Mann opened in nearly 1,200 screens worldwide. The film faced stiff competition from another movie Don - The Chase Begins Again as it was released on the same day. The film opened to a 40% response. The second day saw a huge drop in the collections, due to the Diwali celebrations. According to boxofficeindia.com the collections jumped to 70%, but fell again to 50%. The film has not done well in the smaller centres in India. Despite the disappointing first week, the collections picked up due to positive word of mouth, post Eid the film saw a dramatic upswing. The film managed to gross Rs.350 million and was not so much as hoped but the movie was overwhelmed by the audience.and film become above average at the boxoffice
Pranab Kapadia, the UK distributor of Jaan-e-Mann said "Jaan-E-Mann’s figures have picked up dramatically in Britain. Although the film grossed a mere £18,000 on its opening day, the film has experienced a remarkable upswing, grossing £40,000 on Monday and £60,000 on Tuesday. The audience and critics reception has been overwhelming".
The film has fetched mostly average reviews. 50% on Rotten Tomatoes, 2/5 IBNLive Review and has also got 6/10 ImDb ratings. Taran adarsh gave the film 4/5 saying " A well to do and funny timepass movie" Dhiraj sharma of namasteindia.com gave 5/10 and praised salman's & Akshay's acting.Star Screen Award for Best Music – Anu Malik
Star Screen Award for Best Playback Singer Male – Humko Maloom Hai (Sonu Nigam)