The title track song 'Bachna Ae Haseeno', was sung originally by Kishore Kumar in the film Hum Kisise Kum Naheen (1977)and was filmed on actor Rishi Kapoor. When the idea about using the song 'Bachna Ae Haseeno' from the old movie came, the music duo Vishal Dadlani and Shekhar Ravjiani were excited but they decided not to do a remix version of it. The track was completely re-worked by retaining some of the original vocals of Kishore Kumar on the beginning of the song. And then they got Kishore Kumar's son Sumeet Kumar to sing the rest of the song as a new composition with Vishal Dadlani's rap lyrics. The final product turned out to be unique mix with the legendary singer Kishore Kumar and his son heard in one single track in which the recording is separated by decades and that same song filmed on actor Rishi Kapoor's son Ranbir Kapoor.
The film's first trailer was attached to Tashan (2008) and the second one to Thoda Pyaar thoda Magic - Ein Engel zum Verlieben (2008).
Since two of the film's characters work for Microsoft Game Studios, plenty of video games that have been released by the studio are referenced. In addition, nearly all of the movies referenced are previous releases from Yash Raj Films, with the notable exception of Hum Kisise Kum Naheen (1977).