This year's Óbidos International Chocolate Festival starts on 22 February and runs through to 17 March, with the theme 'Charlie and the Chocolate Factory'.
To fit the new theme, the festival will include a space where chocolates will be produced that the public will be able to visit, as well as sculptures of six characters and locations from the children's book and film.
The festival is one of the country's most popular with Portuguese and foreign tourists, despite its relative newness.
"A decade after we started this event we're going for a multi-year theme, associated to the idea of a town transformed into a chocolate factory, with a lot of creativity and different activities every year," mayor Telmo Faria told Lusa News Agency.
Other new attractions include the 'My Chocolate Box' competition, in which the most creative boxes will be awarded prizes, and an area dedicated to chocolate-themed cookery books.
For the first time the festival will also include a 'research lab' where visitors can try chocolate cocktails, as well as the usual show-cooking session in which chocolate will be used even in meat and fish recipes.