Blake Lively and Ryan Reynolds
Though they were both dating other people while shooting The Green Lantern in 2010, things turned romantic the following year. By April 2012, Reynolds had "practically" moved in with Lively, a source said. "When he's at her apartment, it feels like home." In a big surprise, the couple went on to tie the knot in September 2012 at Boone Hill Plantation in Mount Pleasant, South Carolina.