When can you cast spells?

[When can you cast spells?]

Thanks Lorinor.  Well in the scenario I'm wondering about, my friend was playing the Druid and would cast all of their spells (sometimes just 1 spell though) after rolling, before moving, if they rolled the correct amount of movement to land on the Woods.  That way they would replenish to their full compliment of spells after they actually move.  Is this allowed?  Seems kinda sketchy to me.

[When can you cast spells?]

So I've played Talisman only a handful of times, and I'm wondering if there's some stipulation as to when you can cast spells.  Are you able to roll for movement and then cast before actually moving?  I feel like you can't, but I can't find it in the rule book, and my friends refuse to listen to anything that isn't official.  Thanks in advance for the help!