By Lisa Schwarzbaum
Updated August 03, 2001 at 04:00 AM EDT

A miasma of vanity envelops this smug self-referential burlesque about movie stars whose private lives are intertwined with their professional lives, and the tedious junket journalists they must endure. Catherine Zeta-Jones and John Cusack play the title celebrity couple who are on the outs; Julia Roberts cannily takes the less glamorous role of Zeta-Jones’ assistant and sister, who’s much nicer than her famous sibling and is meant to be the real sweetheart of this sour comedy.