Katie Holmes (Batman Begins) and Chace Crawford (Twelve) have signed on to star in comedy-romance Responsible Adults.

John Poll (Charlie Bartlett) is attached to direct from a screenplay written by Alex Schemmer.

Responsible Adults centers on a 30-year-old medicine student (Holmes) who meets and falls for a younger man (Crawford) only to realise she was once his babysitter.

Night & Day Pictures will finance the film, while Myriad Pictures will sell the international rights at the 64th annual Cannes Film Festival this week.

Source: THR