User blog comment:Mak23686/Dan tweeted about a "sequel"/@comment-3199802-20110618172341/@comment-1874176-20110618192003

@Makeitshine the elevator scene itself wasn't that hard; just film the scene twice with a greenscreen in place of the other girl, then put them together. Note that Melanie was ALWAYS in full view, Sam NEVER walked into Melanie's shot.

Actual INTERACTION between the Puckett twins would be pretty hard to film, though.