Mumbai, July 16 (IANS): Bollywood actor Saif Ali Khan has been signed by producer Bhushan Kumar to star in the Indian adaptation of Hollywood romantic thriller "Before I Go To Sleep", which starred Nicole Kidman and Colin Firth.

The film, which is expected to go on the floors in September this year, will be directed by Vipul Shah, who has made films like “Namastey London”, “Waqt: The Race Against Time” and “Aankhen”.

“Before I Go To Sleep”, which released in September 2014, was based on a book with the same name by author S.J. Watson.

Vipul Shah has bought the rights to adapt the film.

“I was keen on working with Saif Ali Khan and had signed him already and was looking for a script. Vipul came to me with this story and I thought Saif fit the role and it was great that he agreed to be a part of it. He is an actor who moulds himself with every character he plays with ease,” Kumar said in a statement.

Vipul said: “Saif is a great actor. He is versatile and while he has this lover boy quality, he can easily and comfortably also move into an intense part of the film.”