The on-screen kiss between Potter stars Dan Radcliffe and Katie Leung is causing quite a stir on the set of the fifth film - Order Of The Phoenix.
Emma Watson, who plays Hermione, told Newsround that the kiss was "the gossip" of the movie.
Dan and Katie, who play Harry and Cho, were meant to film the scene earlier, but Dan got ill, so it was put back.
"Katie escaped, but I will get her," joked Dan. Katie said she was "excited and nervous" about the scene.
The young actress added that they intended to be "very professional" about the kiss, but Emma couldn't resist a cheeky comment, saying she would be "sniggering in the background".
The stars were talking to Newsround to promote the launch of the DVD for Goblet Of Fire, which went on sale in the UK this week.
It has already shattered records in the US.
Looking forward to OOTP, producer David Heyman told Newsround that the film will probably come out in the summer or autumn of 2007, with Half-Blood Prince set to follow in 2008.
But Potter fans won't have to wait that long for a glimpse of what's to come.
David told Newsround that a trailer can be expected "some time towards the end of the year".
If you want to watch Lizo's interview with the Potter stars in full, just click on the broadband player link top right, then click the Interviews tab.