At Miramax Messick helped bring She's All That (1999) to the company within a month of her hiring, It eventually grossed $60 million. She worked on such films as Boys and Girls (2000), Frida (2002) and Cinderella Man (2005). She also worked directly with Dimension Films and helped make multipicture deals with screenwriters R. Lee Fleming, Jr., Andrew Lowery and Andrew Miller. In 2000, she was promoted to senior Vice-President of Production. She worked at Miramax until 2003. She later worked as an executive Producer for Lorne Michaels, Paramount Pictures and The Weinstein Company. Her film credits include Get Over It (2001), Mean Girls (2004), Hot Rod (2007), Baby Mama (2008), and Masterminds (2016).