Stiller film to get serious

'Little Fockers' will examine themes of death and divorce.

The third movie in the comic franchise - starring Ben Stiller and Teri Polo - will focus on more serious topics, but writer John Hamburg promises to deal with them in a "really comic way".

He told IGN: "We're catching up with these characters five years later and Pam and Greg have twins so they are dealing with that.

"And people are dealing with where they're at in their lives, and themes of death and divorce and all these real things that as we get older, we start to think about, but in a really comic way."

John also promised that Owen Wilson's character Kevin Rawley will have an expanded role in the new film.