"D-Day" releases July 19.
"Going to watch 'D-Day' with my hugest critic ... my wife! The most nerve-wracking feeling before release. Wish me luck (that) she likes it," Arjun tweeted Wednesday.
Arjun and Mehr married in 1998, and together they raise two daughters - Mahikaa and Myra.
In "D-Day", a crime thriller, Arjun essays the character of Rudra Pratap Singh, an ex-officer of the Indian armed forces MARCOS unit. Co-produced by DAR Motion Pictures and Emmay Entertainment Pvt. Ltd., the movie also stars Rishi Kapoor, Irrfan, Shruti Haasan, Huma Qureshi, Akash Dahiya, Sree Swara and Chandan Roy Sanyal.
Photos: Akshay Kumars son Aarav's night out in Juhu
Photos: Shilpa Shetty, son Viaan, Geeta Basra on 'Aunty Boli Lagao Boli' sets
Photos: Isha Ambani and mom Nita show their stylish side
Photos: Ileana D'Cruz flaunts plunging neckline in black dress
Photos: Shamita Shetty, Bhumi Pednekar at fashion show