Warner will unleash an Xbox 360 demo of LEGO Harry Potter: Years 1-4 on Monday, 7th June.
Samplers for PC and PS3 arrive later this month.
LEGO Harry Potter is made by Traveller's Tales of LEGO Star Wars, LEGO Batman and LEGO Indiana Jones fame. This can't really go too far wide of the mark, then.
The full game's due out on 25th June.