The time required depends on which studio you are visiting. For the Warner Bros. Studio Tour London (The Making of Harry Potter), you should budget at least 3.5 to 5 hours. The tour is mostly self-guided, and with the immense detail in sets like Gringotts and the Forbidden Forest, time flies by quickly. For the Warner Bros. Studio Tour Hollywood in California, the experience is more structured and typically lasts about 3 hours. This includes a 1-hour guided tram tour through backlots like Gilmore Girls or Friends, followed by self-guided time at the "Stage 48: Script to Screen" interactive exhibit. If you are a hardcore fan who wants to recreate every photo op (like sitting on the Central Perk couch), adding an extra hour to these estimates is highly recommended for 2026 visitors.