Co-Branding Superheroes

You may have heard there will be a Superman/Batman film produced for 2015 release. Here is their mark mashup. I’m attracted to it, black and red go so marvelously together. Is it a successful mark? I don’t know. It certainly welds them together. It gets the job done. But a direct overlay: any CPG examples come to mind?

[Cross-posted with Toniq]