Are Matthew McConaughey and Woody Harrelson Really Brothers?

On Kelly Ripa's podcast, Matthew McConaughey said his mother actually knew Woody Harrelson's father, which is raising all sorts of questions. Rumors have been swirling for years about McConaughey and Harrelson possibly being related due to their resemblance. Harrelson's father was a convicted hitman who died back in 2007. The pals say they plan on taking a DNA test to see if their bromance is actually something more.