Source: The Hollywood Reporter

According to The Hollywood Reporter, Gabriel Macht, Tom Everett Scott, Lauren Graham and Piper Perabo are joining the cast of Gold Circle Films' Because I Said So, which Universal Pictures will distribute domestically.

Mandy Moore and Diane Keaton already have boarded the Michael Lehmann-helmed project.

Penned by Jessie Nelson and Karen Leigh Hopkins, the story centers on a well-intentioned but overzealous mother (Keaton) who goes on a mission to find Mr. Right for her youngest daughter (Moore). Macht and Scott will play male suitors, while Graham and Perabo will play sisters of Moore's character. The film starts shooting Monday in Los Angeles.