This is an important work in Bergman's filmography, a historically set, metaphorical, theatrical statement before he moved on to the more intimate chamber-films of the 1960s. It would be foolish to make definite statements concerning this film, because it remains mysterious and elusive even after repeated viewing, but central themes would certainly include IB's own personal feelings on being an artist (and an 'outsider'), and fears of being 'exposed' in some way as a charlatan.
'The Magician' doesn't have many slapstick gags or zany one liners, and it retains the doom-laden, oppressive atmosphere of 'The Seventh Seal', so don't come to 'The Magician' if you are in the mood for Chevy Chase. If you are exploring Bergman's work, though, this should be a priority buy, ahead of the minor works of the 40s which Tartan are now releasing, as it is a fascinating and important film. As ever, Max von Sydow is majestic.
I would have preferred to see this released as 'The Face', which is the actual translation of the Swedish title and the proper UK title, rather than the American title Tartan have gone with. This is a minor gripe though and the print of the film is excellent. All in all, highly recommended.