Mumbai: Sonakshi Sinha will be seen in a special appearance in Saif Ali Khan-starrer “Laal Kaptaan”. The actor’s voice-over will be heard in the promo of the film, directed by Navdeep Singh. The story revolves around a naga sadhu (Saif) and his quest for revenge. The director said Sonakshi is a fabulous actor and working with her was a great experience. “It’s a special appearance but a pivotal one. I wanted somebody who would leave an impression, someone with star quality and appeal. “Sonakshi fit the bill perfectly. I’ll leave her part as a mystery. All I’ll say is she’s the most glamorous thing in the film,” Navdeep said in a statement. Deepak Dobriyal, Zoya Hussain and Manav Vij also star. “Laal Kaptaan” is co-produced by Eros International and Aanand L Rai’s Colour Yellow Productions. The film is slated to to released on October 18.