Warner Bros. Studios Leavesden has tapped the Thinkwell Group to help create a permanent expansion to the studio's on-site Harry Potter attraction.

The expansion includes the original Hogwarts Express steam engine (the antique British steam train No. 5972 “Olton Hall” built in 1937) and a re-creation of Platform 9 ¾ set from the Harry Potter film series.

Guests will have the opportunity to climb aboard the iconic train and pose with a luggage trolley as it disappears through the platform wall, along with other interactive exhibits.

Thinkwell previously collaborated with Warner Bros. to open the Warner Bros. Studio Tour London: The Making of Harry Potter in 2012. The attraction explores the art and craftsmanship that went into the creation of the Harry Potter film series at the studio where the movies were filmed.

“We are extremely honored to continue our collaboration with Warner Bros. Studio Tour London: The Making of Harry Potter,” says Craig Hanna, chief creative officer, Thinkwell Group. “Working with Warner Bros., production designer of the Harry Potter films Stuart Craig, and the team at Leavesden is an incredibly rewarding experience.”