As there is little interpretation inside, try to see the introductory film first (showing throughout the day from 9:00 a.m. to 5:00 p.m. ). Your ticket also entitles you to visit the Municipal Museum, which is actually no more than a well-preserved late-18th-century hammam (Turkish bath).
Watch the introductory film first, so you'll understand what you see inside.
There's no need to watch the film first, since there's plenty of information inside to help you make sense of what you're seeing.