2012 is written by Roland EmmerichRoland Emmerich wrote The Day After Tomorrow. The Day After Tomorrow is starring Glenn PlummerThe Day After Tomorrow is written by Roland Emmerich
[Human]: Do you have the movie 2012? [Assistant]: That was written by Roland Emmerich, starring Ty Olsson and Tom McCarthy? No do you like it?  [Human]: Roland Emmerich also wrote The Day After Tomorrow, didn't he? 
No, actually Michael Bay wrote The Day After Tomorrow. That was starring Glenn Plummer and Morgan Freeman.