Mumbai -- Director Sudhir Mishra says the sizzling chemistry between Arjun Rampal and Chitrangada Singh in his upcoming film is something to watch out for. The film is tentatively titled Kahan Shuru Kahan Khatm. "I have just finished a film and I wanted to call it Kahan Shuru Kahan Khatm. It's a film with Arjun and Chitraganda. I don't know if this is the final title, but that's what I want to do. It's a very interesting and strange love story," Sudhir said. "Watch out for the film. There is only one film that Arjun and Chitrangada are doing together... It's outstanding, I just love their chemistry, it's amazing, it's a great pair, wonderful film," he added.