Complex sentence: Witherspoon and Dixon then collaborated with Bruna Papandrea to further develop the manuscript--with Flynn's film agent, Shari Smiley, they met with film studios in early 2012.
Split into simpler sentences: Witherspoon and Dixon then collaborated with Bruna Papandrea to develop it. With Flynn's film agent, Shari Smiley, they met with film studios in early 2012.