Rajveer Singh (Saif Ali Khan) has an immense passion for car racing and dreams of making it big on the racecourse. After being discovered by his manager Harry (Jaaved Jaffrey), he meets Radhika 'Shona' Shekar Rai Banerjee (Rani Mukerji) and instantly falls for her. He joins Speeding Saddles, a failing race team, and transforms from Rajveer Singh to RV the race car driver. He wins his first race and keeps winning, making him quite wealthy.
What started as an innocent love blossoms into a serious relationship as months pass. Radhika is a great pianist, majoring in music at Columbia University, whereas Rajveer has no degree or any education background. His lack of education and planning earns the disapproval of Radhika's father, Subho Shekar Rai Banerjee (Victor Banerjee). However Radhika leaves her father and marries RV, whom she loves immensely. She forgets about her degree and takes on her job as a wealthy housewife, therefore Radhika Shekar Rai Banerjee turns into Shona. Their family is complete with the birth of two beautiful children, Priya a.k.a. Princess (Angelina Idnani) and Ranveer a.k.a. Champ (Ali Haji (actor)). Luck follows RV and he is soon proclaimed the number one race car driver in the USA.
However, tragedy strikes one day. A racer called Rusty who is quite jealous of RV's name and fame, crashes his car whilst racing, getting him hospitalized for a few months. When he gets out, he heads straight to the track to race again but soon learns that he's scared of going fast because he doesn't want to crash and get hurt again. His old accident haunts him and he comes last in every race he participates in. Exasperated, his manager fires RV and finds someone else. Angry RV tells Harry that he doesn't need him anyway, that he can find some better other manager easily. This results in the end of their friendship.
Now a year has gone by and neither RV nor Shonaa have jobs. They try their best to find work but no one will hire them because none of them have degrees, making them regret Shona's father's words. RV and Shonaa are unable to pay their loans and bills so everything they own in their house is sold. Princess and Champ who are not told much start to worry that they're becoming poor and RV covers up the truth; he says they're actually on a reality show, Don't Worry, Be Happy. This lets them rest but then they suffer more. With only about $2,000 left, RV and family leave their big house and find a less expensive one.
They move into a one-bedroom apartment, and the children become worried again. RV and Shona tell them this is all part of the game and the kids believe them. They still go to their favorite school while their parents try to find jobs. A few days later, Harry comes to meet RV and Shona and offers RV a job of a cab driver. RV thinks he's insulting him of his poverty and lack of his racing talent which results in a heated argument between the two and RV asks him to leave. Days pass and Shona gets a job as a piano player and RV becomes a taxi driver, after lots of arguing.
One night when RV and Shona start fighting, Princess overhears them and learns the truth that they actually are in trouble with money and that there's no reality show. She wants to take things in her own hands and then plans to save up the money she and Champ use are given for lunch. The kids don't eat, and Princess manages but Champ begins to starve. He takes food from the garbage bin without his sister knowing and eats it outside of school on a bench. He keeps eating from the garbage while Princess keeps saving up money. Princess makes Champ promise not to tell their parents a single thing, knowing they'll get mad.
RV gets a customer who needs to get to the airport soon. He takes this chance as to test his racing skills, if they're still there. RV starts off doing great and moves in elegant speed until he gets a terrible flashback of his nightmarish accident. He so then learns that he could probably never race again because of being scared of getting hurt.
Champ gets a piece of glass inside his stomach from eating something. RV, Shona, and Princess run to the hospital where Princess tells her parents the plan she made Champ follow. The doctor tell RV and Shona that they need $65,000. The couple has no idea how they are going to get the money and only have two days to get it. RV decides to enter a race for his son's sake. He meets his old nemesis and he starts remembering the flashbacks. But that doesn't stop him for the love of his son. He and Champ win, while apparently killing RV's nemesis by pushing him off the track. In the end the family is living a happy and fun life, portraying the moral- Fear of losing someone you Love overcomes your fears.Saif Ali Khan as Rajveer Singh aka RV
Rani Mukerji as Radhika Rajveer Singh [nee Shekhar Rai Banerjee] "Shona"
Angelina Idnani as Priya Singh "Princess"
Master Ali Haji as Ranveer Singh "Champ"
Jaaved Jaaferi as Hariprasad Dhirubhai Patel aka Harry
Shruti Seth as Sasha, Radhika's Friend
Victor Banerjee as Shubho Shekhar Rai Banerjee, Radhika's Father
Bharat Dabholkar as Billy Bhatia, RV's Boss
Dolly Bindra as Mrs. Panoya
Merabby Illis as the Landlord
Ken Thompson as Rusty
Kal Parekh as Nilesh
Production began in May 2006 and the film was released on 27 April 2007. The working title was "Ta Ra Rum Pum Pum." The film was shot almost entirely in the United States of America, with a few scenes shot in a studio in Mumbai. Portions were filmed in Rockingham, North Carolina at the Rockingham Speedway and at West Allis, Wisconsin at The Milwaukee Mile. Ali Haji had to go through three auditions and Angelina Idnani was called in for her fourth audition before they were finalised. The plot is combined with that of Tom Cruise's Days of Thunder and Will Ferrell's Talladega Nights: The Ballad of Ricky Bobby — the protagonist meets with an accident while racing and than makes a comeback destroying his nemesis race driver – and Will Smith's The Pursuit of Happyness, where a father and son have to move out of their house, due to the loss of a job.
The cars used in racing scenes were provided by Andy Hillenburg, who purchased Rockingham Speedway months after its release and provided the stunt drivers, as many ARCA Re/Max Series drivers participated in the filming (ARCA Re/Max Series stickers can be found on the cars in the movie; Hillenberg trained stunt drivers, along with letting some film stars take turns driving). Some cars that can be seen in Ta Ra Rum Pum display high resemblance to cars specifically created for Will Ferrell's Talladega Nights: The Ballad of Ricky Bobby (except featuring modified sponsorship decals) as Hillenburg provided cars for that movie as well.
The music was conducted by the duo Vishal-Shekhar and Javed Akhtar penned the lyrics. Ta Ra Rum Pum contains seven songs. According to the Indian trade website Box Office India, with around 10,00,000 units sold, this film's soundtrack album was the year's fifteenth highest-selling.
Ta Ra Rum Pum opened to an average response, where collections were reported to be as low as 50%. However, the film saw a good opening of 90%-95% in the big cities such as Mumbai and Delhi; the smaller cinemas received an average response of 50%–70%. Though the film opened to an average response the next two days saw a huge jump in collections. The collections dropped on Monday by about 55%–70%. In its first week the film collected an impressive 43.7 million in Mumbai, and did well at the multiplexes but not at the single screens. The overall gross for the first week in India stands at Rs. 114,392,260. The release of Spider-Man 3 caused a drop in collections, but the film has continued to do well in Mumbai and Delhi. Ta Ra Rum Pum became the 9th highest grossing film of 2007 so far with box office figures of Rs. 362.0 million.
The three main markets overseas – the UK, USA and Australia – saw a similar opening. Ta Ra Rum Pum collected during the weekend and debuted at number nine on the UK film chart which was a good opening. In the United States, the film collected $425,102 which was a fair opening. In Australia it collected $90,000. Though the weekend figures are good, the collections are below expectations for a Yash Raj film. The film was given an above-average status in the United States and was a hit in the United Kingdom.
In its sixth week, the film had collected 377.0 million and was declared a semi-hit in India. Overseas the film has collected $2000000 in the United Kingdom.
The title song of Ta Ra Rum Pum is a four-minute animated endeavour with all the main characters of the movie and four other animated characters. This song was executed by Walt Disney Studios as part of their three-film deal with Yash Raj Films.
The film opened from above-average to very positive reviews. Taran Adarsh of Indiafm.com gave Ta Ra Rum Pum a rating of 3.5 out of 5. The two lead actors got good feedback with Adarsh saying "Saif is extremely likable. He conveys the varied emotions with complete understanding. Rani enacts the role of the mother/wife proficiently".Won – Sabsey Favourite Heroine – Rani Mukerji