Steve Martin and Diane Keaton, whose chemistry helped propel Father of the Bride and Father of the Bride Part II to the top of the box office, are reuniting onscreen.

Variety reports that the duo has signed on to star in Paramount's One Big Happy, described as "a comic pitch from Party of Five creators Chris Keyser and Amy Lippman." From the article:

Concept is being kept under wraps, but sources describe "One Big Happy" as a family comedy about a couple and a family reconnecting amid various obstacles. The material is a strong match for Martin and Keaton, who played a married couple in the Charles Shyer-directed "Father of the Bride" and its sequel.

The project continues a solid run for Keaton, who was most recently seen in Mama's Boy and Mad Money, and will act as the follow-up for Martin's Pink Panther 2.

Source: Variety