Ryan Reynolds  hopped on a bike and rode behind a camera crew yesterday on the South African set of his latest film, Safe House . The actor usually prefers motorcycles  over cars when he's working in LA , so it's no surprise he looks relaxed on two wheels. Ryan's been keeping himself immersed in work  since news of his split from Scarlett Johansson , and soon we'll see the world's reigning Sexiest Man Alive  back on the big screen. His two new films, The Green Lantern  and The Change-Up , are both slated for a Summer release. Ryan is also the hot single guy you most want  to spend romantic time with, though for now he's rolling solo.