By Kerrie Mitchell
Updated June 26, 2009 at 04:30 PM EDT

The Hollywood Reporter is reporting that Topher Grace and Emma Roberts have joined the already huge cast of director Garry Marshall’s planned romantic comedy Valentine’s Day. Marshall favorite Hector Elizondo (Pretty Woman, The Princess Diaries) has also signed on. Among the cast already in place for the five interlocking stories that take place over a Valentine’s Day in Los Angeles: Julia Roberts, Anne Hathaway, Jessica Alba, Jessica Biel, Jennifer Garner, Shirley MacLaine, Bradley Cooper, and Ashton Kutcher.