Screen star Jason Statham has branded director Guy Ritchie the toughest film-maker he's ever worked with - and frequently spars with him behind the scenes. Statham first collaborated with Ritchie on 1998 movie LOCK, STOCK AND TWO SMOKING BARRELS, and he warns the director isn't as mild as he appears. He says, "He's the f**king hardest film director on planet earth. He's a tough motherf**ker. "Although if it came to real blows with me, he'd be in trouble."