Aadhi is a 2018 Indian Malayalam-language action thriller film written and directed by Jeethu Joseph. The film stars Pranav Mohanlal in the title role. It was produced by Antony Perumbavoor through Aashirvad Cinemas. Aadhi was released in India on 26 January 2018 and met with widely positive critical response.
On 30 September 2016, Mohanlal announced that his son Pranav Mohanlal would be acting in a film directed by Jeethu Joseph and produced by Aashirvad Cinemas, which would be a thriller. The film marks the return of Pranav as an actor, who had earlier appeared as a child in 2002. He had worked with Jeethu as an assistant director in two films—Papanasam and Life of Josutty. The project was green-lit a few days before the announcement when Jeethu had a discussion with Pranav. After learning Pranav wanted to return to acting, Jeethu approached him with an abstract idea of a film and received positive feedback.
Jeethu was in charge of writing; he had completed the story by the time of the announcement and had begun writing the screenplay, intending it to be his next directorial. He described the film as an action movie and a thriller, but it will not resemble a thriller like his 2013 film Memories. Jeethu had developed the story idea during his college education. His protagonist was a marathon or cross country runner, whose athletic skills aids him in the story. For the film, it was changed to parkour since Pranav had learned it during his academic life. The entire plot takes place within one week or 10 days. By the end of March 2017, Jeethu said he was working on the script and hoped to start filming by June, with the rest of the cast finalizing after the first draft is prepared. In early May, Jeethu confirmed that the first draft was complete and they were about to enter pre-production, with the filming planned to begin in the second half of 2017. In mid-May he stated that he is still working on the screenplay.
In early July 2017, Jeethu said he intended to start filming by the end of that month. For the film, Pranav trained in parkour. The title Aadhi along with an animated digital poster were revealed on 5 July at the puja function of the film held at hotel Vivanta by Taj in Thycaud, Thiruvananthapuram. The venue was shared with the puja of Aashirvad Cinemas’s Odiyan. Aadhi is billed with the tagline, “some lies can be deadly”. Satheesh Kurup was signed as the cinematographer, while Anil Johnson as music composer.