Los Angeles, Sep 7 (IANS): Actress Zoe Saldana says it is essential for actors to strike the right chemistry for a love story on screen, and admits she could do so comfortably with Bradley Cooper in "The Words".

"I've always said that when you watch movies and a love story falls short of what you wanted it to be, as an actor, as a person who works in films, you know that 90 percent of the time it didn't work is because there was no chemistry, they didn't work out a friendship, they didn't feel safe around each other, they weren't communicating properly," hollywoodreporter.com quoted Saldana as saying.

That wasn't the case on the set of their new film, she said.

"Bradley is a very dedicated and open professional. It's really good when you can balance that with an actor as opposed to an actor that just comes prepared and just goes, 'don't fuck up my light' and 'this line is my close-up'."

"We didn't care where was the camera was. It was just like we were both part of this extensive conversation."

Their chemistry sparked speculations that the sizzle onscreen had translated into a real life romance between Saldana and Cooper.

Asked about those rumours, she merely replied: "No comment."