Did James and Lily know about the prophecy?

[justcarol67]

No: HPFGUIDX 86676

Madmaxime:
<snip>
I believe it was her [Lily's] last ditch effort to save him [Harry],
if all else failed.  She knew that Voldemort was willfully ignorant of
this 
type of protection, and so would not be expecting it. I believe she had 
the spell set in place, waiting to be activated before Voldemort even
entered the room.

Yolanda: 
> I believe she cast the spell in advance as well.  
> The charm she cast that protects Harry is pretty 
> powerful.  It is possible that she was that good 
> at charms and did cast the spell that night, but 
> I'd always thought it sounded like something that 
> required a bit more preparation.

Carol:
Without actually taking a stand in favor of this intriguing theory, I
want to mention that there's at least one bit of canonical support for
it. When Harry visits Ollivander's in SS/PS (p. 82 Am. ed.),
Ollivander tells him that he remembers every wand he ever sold,
including James's ("excellent for transfiguration") and Lily's ("nice
wand for charm work"). We've already learned at least part of the
reason why James's skill in transfiguration is important (he was an
animagus). We haven't yet learned much about Lily, but we can be sure
that her skill with charms will play a role later. She may also have
cast the Fidelius spell making Peter the Secret Keeper, but that
probably isn't the crucial peice of information about her that JKR is
reserving for Book 7. A deliberate charm to protect her child's life
would fit the bill nicely, however, and would show just how very much
Voldemort underestimated her by calling her a "foolish girl."

Carol