Priyanka Chopra has launched the trailer for her Marathi film 'Paani', directed by Adinath Kothare. Set in Nagderwadi village, the film addresses water scarcity and features Subodh Bhave, Kishore Kadam, and Rucha Vaidya. Aamir Khan makes a special appearance as himself. 'Paani' is scheduled for theatrical release on October 18.