Format: DVD

Director: Greg Berlanti

Cast: Katherine Heigl,Josh Duhamel

Gpt-comments: The text seems to refer to the film 'Life As We Know It' starring Katherine Heigl and Josh Duhamel. The director's name was not provided, but it is publicly known that Greg Berlanti directed this film. The format is assumed to be a DVD based on the popularity of this format for movies during the movie's relevant period and the lack of specific format information in the prompt.