Question: Abhishek Bachchan who is starring in the Indian comedy-drama film "Paa", debuted in what 2000 War film?

Context articles: Piku
Shamitabh
Bunty Aur Babli
Abhishek Bachchan
Happy New Year (2014 film)
Paa (film)
All Is Well (film)
Goldie Behl
Kajra Re
Guru (2007 film)

Piku is a 2015 Indian comedy-drama film directed by Shoojit Sircar and produced by N.P. Singh, Ronnie Lahiri and Sneha Rajani.
 It stars Deepika Padukone as the titular protagonist, Amitabh Bachchan and Irrfan Khan, with Moushumi Chatterjee and Jisshu Sengupta portraying supporting roles.
 It tells the story of the short-tempered Piku Banerjee (Padukone), her grumpy, ageing father Bhashkor (Bachchan) and Rana Chaudhary (Khan), who is stuck between the father-daughter duo, as they embark on a journey from Delhi to Kolkata.
Shamitabh is a 2015 Indian satirical film written and directed by R. Balki.
 The film features Amitabh Bachchan, Dhanush and Akshara Haasan, in her debut, in the lead roles.
 The film is jointly produced by Sunil Lulla, Balki, Rakesh Jhunjhunwala, R. K. Damani, Amitabh Bachchan, Abhishek Bachchan, Sunil Manchanda and Dhanush under their respective production banners.
 Ilaiyaraaja composed the soundtrack album and background score, while cinematography was handled by P. C. Sreeram.
 The film released to positive reviews with critics praising Dhanush and Amitabh's performances.
Bunty Aur Babli (Hindi: बंटी और बबली, translation: Bunty and Babli) is a 2005 Indian Hindi crime-comedy film directed by Shaad Ali and starring Rani Mukerji and Abhishek Bachchan.
 Amitabh Bachchan stars in a supporting role.
 It was the first film to feature Amitabh Bachchan and his son Abhishek Bachchan, and featured guest appearances by Aishwarya Rai and Tania Zaetta.
 It was one of the biggest hits of the year.
 Though the lead actor Abhishek Bacchan was shown living in Fursatganj, those scenes were shot in Agra.
Abhishek Bachchan (born 5 February 1976) is an Indian film actor, producer and playback singer known for his works in Bollywood and Bengali cinema.
 Part of the Bachchan family, he is the son of actors Amitabh Bachchan, and Jaya Bachchan.
 He made his screen debut with the 2000 War film, "Refugee".
Happy New Year, sometimes abbreviated as HNY is a 2014 Indian heist comedy-drama film directed by Farah Khan and produced by Gauri Khan under the banner of Red Chillies Entertainment.
 The film has an ensemble cast, which includes Shah Rukh Khan, Deepika Padukone, Abhishek Bachchan, Sonu Sood, Boman Irani, Vivaan Shah and Jackie Shroff.
 The film was distributed worldwide by Yash Raj Films.
 The film marked a third collaboration of Khan with the director; they previously worked on "Main Hoon Na" (2004) and "Om Shanti Om" (2007), the latter of which also featured Padukone as the female lead.
Paa (Hindi: पा, English: "Father") is a 2009 Indian comedy-drama film directed by R. Balakrishnan (credited onscreen as R. Balki) starring Amitabh Bachchan, Abhishek Bachchan, and Vidya Balan.
 The film is based on a rare genetic condition known as progeria and places emphasis on a father-son relationship.
 Amitabh Bachchan and Abhishek Bachchan, in real life, are father and son respectively, but in "Paa", they played opposite roles.
 The film was released worldwide on 4 Dec 2009.
 Veteran composer Ilaiyaraaja scored the music.
 The film was critically acclaimed in India and fared well at the box office.
 Despite a warm reception from Indian film critics, the film received mixed reviews from overseas film critics, according to the websites Metacritic and Rotten Tomatoes.
All Is Well is a 2015 Indian Hindi-language romantic comedy-drama film directed by Umesh Shukla and produced by Bhushan Kumar, Krishan Kumar, Shyam Bajaj and Varun Bajaj and co-produced by Ajay Kapoor.
 It stars Rishi Kapoor, Supriya Pathak, Abhishek Bachchan and Asin in lead roles.
 The film tackles a thorny issue with a social message similar to Shukla's previous venture "OMG – Oh My God!
".
 The official trailer of the film was released on 1 July 2015 on YouTube.
 The film released on 21 August 2015.
As student of Mayo College, Behl trained within the Bombay Film Industry, born in 1975.
 In 2001, he made his directorial debut with the film "Bas Itna Sa Khwab Hai" ("That’s All I Dream of") starring Abhishek Bachchan, Rani Mukherji, Sushmita Sen and Jackie Shroff.
 Behl then co-founded Rose-audiovisuals which has released shows such as Lipstick, Remix songs and "Kabhi Haan Kabhi Na" on Indian television network. "
Drona" was his second film, an ambitious project, with fantasy-action and stylized special effects amalgamating Indian mythology with pure fantasy, and fusing a contemporary storyline.
 It starred Abhishek Bachchan and Priyanka Chopra.
Kajra Re (Hindi: कजरारे , English: "Kohl-like dark(Eyes)") is a song composed by Shankar-Ehsaan-Loy, written by Gulzar and sung by the playback singers Alisha Chinoy, Shankar Mahadevan and Javed Ali.
 It is from the 2005 film "Bunty Aur Babli", starring Abhishek Bachchan, Rani Mukerji and Amitabh Bachchan.
 The female lead is a courtesan trying to express her desires to attract the male, or her client.
 It features Amitabh and Abhishek at a nightclub and Aishwarya Rai, making a special appearance in the film, sings for Amitabh, who joins her with Abhishek in the singing and dancing.
Guru is a 2007 Indian drama film loosely based on the life of Dhirubhai Ambani, a business magnate who founded Reliance Industries.
 The film was co-written and directed by Mani Ratnam.
 It stars Abhishek Bachchan, Aishwarya Rai, R. Madhavan, Vidya Balan, Arya Babbar, and Mithun Chakraborty in the leading roles.
 The film also has Mallika Sherawat in a guest appearance.
 The score and soundtrack for the film was composed by A. R. Rahman.
 The film was dubbed and released simultaneously in Tamil as "Guru" and in Telugu as "Gurukanth".
 In the Tamil version of the film, the lead role (Abhishek Bachchan) was dubbed by Suriya.
 The film was released on 12 January 2007 with its première at the Elgin Theatre in Toronto, Canada, on Thursday 11 January 2007, making it the first Indian film to have a mainstream international première in Canada.
 The film was premiered in the Tous Les Cinemas du Monde (World Cinema) section of 2007 Cannes Film Festival.