The film faced a minor controversy before release. The Salon and Hairdressers' Union of Mumbai objected to the title Billu Barber , arguing that the term "Barber" was derogatory. To respect the community, the producers removed "Barber" from the title just before release, shortening it simply to . However, the original title remains widely recognized in pop culture.

The film is widely considered a showcase for its lead actors:

gave it 2/5 stars, noting its charm is often interrupted by attempts at "commercial appeal".

Irrfan Khan’s performance is the soul of the film. He portrays Billu with a quiet dignity and a palpable sense of anxiety that grounds the movie’s more flamboyant moments. Shah Rukh Khan, playing a fictionalized version of his own public persona, brings a charismatic yet soulful touch to the role of Sahir. The contrast between Billu’s dusty, cramped barber shop and Sahir’s high-tech, neon-lit film sets perfectly illustrates the film’s central theme of social disparity.

The story centers on Billu (Irrfan Khan), a humble, impoverished barber living in the quiet village of Budbuda. Billu struggles to provide for his wife Bindiya (Lara Dutta) and their two children. His life is mundane until a massive film crew arrives in the village to shoot a blockbuster. The star of the film is none other than Sahir Khan (Shah Rukh Khan), the reigning superstar of Indian cinema.