We all remember nerdy little Neville Longbottom from Harry Potter ... but boy oh boy has he grown up.
In an Instagram post, actor Matthew Lewis (a.k.a. grown up man-version of Longbottom) shared a cute picture of himself and Stranger Things star Millie Bobby Brown.
He joked about Harry Potter and Stranger Things fantasy worlds colliding as he hung out with Millie, a.k.a. Eleven, and jokingly revealed the inspiration behind his "XI" tattoo.