Numerous websites have been reporting today that several cast members, including Helena Bonham Carter (Bellatrix Lestrange) have been back filming some scenes for a short that will be shown at Universal Studio’s Wizarding World of Harry Potter.  The Sun reports,

Helena Bonham Carter, 46, is among cast members who have been filming scenes at the Potter studios in Hertfordshire — reprising her role as witch Bellatrix Lestrange. A source confirmed last night: “The cast have really enjoyed getting back together — they are so tight-knit.”

The new “mini movie” will go on show at The Wizarding World of Harry Potter attraction in Florida and two new Hogwarts theme parks under construction. The source said of the mystery new adventure: “The shooting schedule is nowhere near as long as the films, so though filming has been intense, the stars have enjoyed being able to pop in and out.”

While it seems that this is correct information, and it most likely is, the news should be taken as a rumor until confirmed by Universal or Warner Bros. If true, this could mean that the new short(s) will be shown along with the new Hogwarts Express ride, which will hopefully be opening some time in 2014.  It is also a possibility that they will be shown in the California and Japan theme parks when those open in 2014 and 2016 respectively.