Helena Bonham Carter has hinted she is filming new Harry Potter footage.

The cast of the magical film franchise - which ended in 2011 with Harry Potter and the Deathly Hallows - Part 2 - were rumored to have reunited for a new mini-movie to be played at the Wizarding World of Harry Potter theme park, and the actress has suggested she has indeed reprised her role as evil witch Bellatrix Lestrange.

"I'm not sure what we're allowed to say. I think we've been gagged!" she said when asked about her involvement in the project. Quizzed further if fans can take that as confirmation she is involved in the project, Helena added, "You can read into it what you will."

Filming on the secret project is believed to be taking place at Warner Bros. Studios in Hertfordshire, East England, where the eight full-length films were also made, and it will be screened at the Wizarding World of Harry Potter at Universal Orlando as well as two new parks which are under construction in California and Japan for 2014 and 2016 launch dates respectively.