The duration of a Warner Bros. Studio Tour depends on whether you are visiting the Hollywood or London location. For the Warner Bros. Studio Tour Hollywood, the guided portion typically lasts about 1 hour, followed by 2 hours of self-guided exploration through "Stage 48: Script to Screen" and the "Action and Magic Made Here" exhibits, totaling roughly 3 hours. For the Warner Bros. Studio Tour London – The Making of Harry Potter, the experience is much more expansive; the average visitor spends about 3.5 to 4 hours walking through the Great Hall, the Forbidden Forest, and Diagon Alley. At the London site, there is no strict time limit once you enter, so dedicated "Potterheads" often stay for 5 hours or more to read every placard and take photos. Regardless of the location, you should arrive at least 20 minutes before your scheduled time slot for security checks. Both tours feature extensive gift shops and themed cafes (like Central Perk in LA or the Backlot Cafe in London) that can easily add another hour to your total visit time in 2026.