Question about the map -book

[Diana]

"Barbara D. Poland-Waters" wrote:
<snip>
 >>>isn't he [Lupin] doing a disservice
> to Harry by not telling DD everything? He's the only one who knows 
that
> Black can change into   a dog and knows about entries into the 
castle!
> 
> Unless he suspects Black was innocent, but I don't think there's 
evidence
> for that in the canon.

Well, in the book, Lupin blames himself for not telling Dumbledore 
everything about Black (and James and Peter) being an animagus, the 
Marauder's Map and the secret passageways because of a very selfish 
reason he had for keeping quiet.  Lupin didn't want Dumbledore to 
know that Lupin had betrayed his trust in allowing him to attend 
Hogwarts by running around all night with three other students 
he'd 'corrupted' into being rulebreakers with him.  He didn't want 
Dumbledore to be disappointed in him.  
Lupin treasured Dumbledore's trust and faith in him and hated to 
lose it if he thought there was the slighest possibility that giving 
up this information might not be worth it (i.e. Black wasn't using 
that past info at all).  Until Lupin saw Peter Pettigrew on the Map, 
he did think Black was guilty of killing James and Lily and of 
attempting to kill Harry, so his withholding of this vital 
information from Dumbledore was very, very self-serving, which could 
have cost Harry his life if Black hadn't actually been innocent.  
It's because of this that I think Dumbledore makes no effort to 
convince Lupin to stay as the DADA teacher or even consider 
defending Lupin's superior teaching skills to the many parents who 
would protest a werewolf teaching their children.  I believe it's 
also why Lupin keeps himself emotionally distant from Harry 
throughout PoA and OotP.  Though, I think Lupin's 'little talk' with 
the Dursleys at the end of OotP (oh, I really hope that's in the 
movie!) may be the beginning of Lupin forgiving himself for his 
selfishness.  Part of his emotional distance is also due to his 
shame at being a werewolf, but I think a lot of it is guilt at 
himself for placing his own reputation with Dumbledore above the 
life of the child of one of his dearest friends.  
The emotional distance was also maintained in Thewlis' protrayal of 
Lupin in the movie.  Lupin kept himself within the role of teacher 
to Harry and only slightly broke out of it when he talked to Harry 
about Lily and James in the covered bridge scene, which wasn't in 
the book.  There were no hugs, no deep, meaningful talks about what 
was going on in Harry's life like there was between Harry and Sirius 
in OotP, even though Lupin knew James nearly as well as Sirius did.  
I wonder how different Lupin would be as a character if he tried to 
assume the role Sirius had had in Harry's life?   

Diana L.