Mumbai, July 26 (IANS) Actor Chandan Roy Sanyal, who will be seen kissing his "Prague" co-star Elena Kazan, confesses he is uncomfortable while locking lips.

The movie, directed by Ashish R. Shukla, has an intimate scene and Chandan found it difficult to perform it.

"Yes, there is a lip lock scene in the film. I find it difficult to perform such scenes. I am not comfortable doing such scenes," Chandan told IANS.

He calls the movie, set to release Aug 2, "a very dark love story".

"'Prague' was shot in European cities. It's a very dark love story. I am playing an architect in the film. It's a psychological thriller," he said.

Made under Glamour Struck Productions Pvt. Ltd. banner, the movie also stars Arfi Lamba, Mayank Kumar and Sonia Bindra.

Chandan, best known for his role in "Kaminey", considers the film's director Vishal Bharadwaj as his mentor and is grateful to him for the big break. 

"I consider Vishal as my mentor. He gave me a big break, which worked well for me. 'Kaminey' was certainly the big break for me. I am grateful to him," said Chandan, who will be acting in another love story film titled "Mango".