SCI FI Wire caught up with actor Jason Isaacs, who plays Lucius Malfoy in the Harry Potter film franchise, and said that he'll have a lot more to do in the upcoming fifth film, Harry Potter and the Order of the Phoenix.

Isaacs said that the fifth film will include (WARNING: Spoiler ahead!) a harrowing showdown between his character and Harry's godfather, Sirius Black. "I get to have a wand battle with Gary Oldman, possibly my favorite actor in the universe," Isaacs said. "We get to play around like two 10 year olds. And with kind of unlimited sci-fi imagination. It's fun. We just go, 'Well, how about if I ... .' And anything you finish that sentence with, they go, 'Yeah, OK. You can do that.' So it was magnificent."

Issacs says "I had virtually nothing to do in number four ... But I have a little bit more to do in this". Isaacs' character is the sinister father of Harry Potter's rival at Hogwarts School of Witchcraft and Wizardry, Draco Malfoy. In the fifth book, the elder Malfoy is revealed as a Death Eater, one of the followers of the evil Lord Voldemort.

CLICK HERE to read the entire interview with Jason Isaacs!

Harry Potter and the Order of the Phoenix arrives in conventional and IMAX theaters on July 13, 2007.