Why did the Harry Potter Cast wear poppies to premire of Deathly Hollows part 1?

The Harry Potter cast wore poppies to the premiere of Deathly Hallows Part 1 to show their support for the Royal British Legion. This charity provides support to members of the British Armed Forces and their families.

The poppy is a symbol of remembrance for those who have died in war, particularly during World War I. Wearing a poppy is a way of honoring their sacrifice and showing solidarity with the Royal British Legion's mission.

It's important to note that the film premiere took place in the United Kingdom, where the poppy is a particularly strong symbol of remembrance.