Actors Tim Robbins, left, and Susan Sarandon pose with their sons Miles and Jack, right, in 2005. (Stuart Ramson/Associated Press)

U.S. actors Susan Sarandon and Tim Robbins have broken up, according to a statement from their publicist.

Teal Cannady said the couple separated over the summer after 23 years together. She did not elaborate.

Sarandon, 63, and Robbins, 51, met while shooting the 1988 film Bull Durham.They have two sons together, Miles Robbins and Jack Henry Robbins. Sarandon also has a daughter, Eva Amurri, with director Franco Amurri.

Sarandon stars in The Lovely Bones, opening worldwide next month. Robbins last appeared in 2008's City of Ember, and in 2009 directed and produced TV's Possible Side Effects.