In recent years, a number of artists have abstracted images culled from slapstick, comic strips and films, cartoons and animation into a new representational mode to address perplexing issues about war and global conflicts, the loss of innocence and ethnic and cultural stereotyping. From Julie Mehretu's intricately layered paintings and Arturo Herrera's psychological collages made of Walt Disney coloring books to Ellen Gallagher's seductively Minimalist...