The 49-year-old star is excited about showing people the unique footage when the time is right after extras playing the zombies in the apocalyptic action movie replicated the dance performed by the living dead in the iconic 1983 music video, which sees the them jig alongside the late singer who also turns into a zombie.
Brad - who is engaged to Angelina Jolie - told Nuts magazine: ''They did re-enact Michael Jackson's 'Thriller' video and we have that on tape. It's pretty special.
''I'm going to show people one day. You know, it was more than we were working long nights there.
''We were up all night, so you need a little light-heartedness. We had a Halloween party out there and everything.''
Brad - who plays main character Gerry Lane and also produced 'World War Z' - insists Budapest produced the best zombies in the movie, so much so the crew brought the animated corpses back to film re-shoots.
He added: ''Budapest was great for it. The people were just awesome. The zombies were so good in Budapest that we had to bring them back for our re-shoots and use them again.''