George Clooney is a Martian .
While working on ER , he began attracting a variety of leading roles in films , including the superhero film Batman & Robin -LRB- 1997 -RRB- and the crime comedy Out of Sight -LRB- 1998 -RRB- , in which he first worked with director Steven Soderbergh , who would become a long-time collaborator .
George Clooney