Sarah Jessica Parker in talks for Hugh Grant film

Sarah J. Parker is set to star in a new movie alongside actor Hugh Grant.

The actress is in talks to star in the as yet untitled romantic comedy written and directed by Marc Lawrence, who helmed 'Music and Lyrics' and 'Two Weeks Notice'.

Sarah and Hugh will star as an estranged, high-powered New York couple who are forced into a witness protection program in a small US town after they see a murder take place.

The film, which was originally titled 'Buffalo Faith', is due to start shooting in March.

This will mark Sarah's return to the big screen following the huge success of her latest film, 'Sex and the City: The Movie'.

The actress - along with her co-stars Kim Cattrall, Cynthia Nixon and Kristin Davis - is already planning a sequel to the blockbuster, according to Michael Lombardo, a head of programming for HBO, the network who originally broadcast the 'Sex and the City' TV series.

He said: "There is enormous interest by Warner Brothers Newline to do another 'Sex and the City', and I think, in fact, they're trying with our help to put that together now.

"When that happens, how long it will be, I can't say. I think everybody associated with that project was really heartened by the enthusiasm from the fans of the show."