You need to slightly warm the outside of the tin. Soak a tea towel in hot water and squeeze it out till there is no water. Wrap the damp, hot towel around the tin for a minute and then tip your tin upside down and try and gently ease the chocolate shell out. You can also do the same thing if you have a decorating blow torch, flame the outside of the tin and ease the chocolate out. It is much easier to use a flexible silicone mould, I bought one at Kmart very cheap.
If you used chocolate that needs to be tempered, you may have a problem in its release from the pan. I just made a couple of the giant cupcake wrappers and used candy coating and it released fine both times. But like the poster above said, try and gently heat the pan to see if the chocolate will release. The other option is putting it in the freezer for about 10-15 minutes. That should cause the chocolate to shrink and it may pop out.
Good luck!
RJ
Quote by @%username% on %date%
%body%