2.Follow the Signs

How about 'Remember the Signs' ?

I really like, "Remember the Signs". It really evokes a connection to the story, not to mention explains part of the plot.

Ooh, I'm all for "Remember the Signs" as well - nearly gave me chills thinking of what a SC movie could be like just from that one line.

Great, now who do we contact to officially request it?

I like the way 'Remember the Signs" sounds too, there's something very mystical about it, especially if you add epic music and a haunty, sort of ghosty background

"Save Funeral Expenses"

Here's an old one I came up with.

"She's climbing in your windows, she's snatching the people up, so y'all need to hide your children, hide the Telmarines, and hide the Narnians 'cause she's stealing everybody up here. You don't have to come and confess you're hiding down there, the kids will find you. So you can run and tell that, Green Witch."

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Journey North. Take Heart. Always Remember the Signs.

Or

Giants and witches and gnomes, oh my!

Louloudi the Centaur, That's hilarious!

I'm down for Journey North. Sounds very mysterious. Or 'Not Everything Is As It Seems' its kind of cliche but it could work.

Instead of Remember The Signs I think a better line would be 'Remember the Green Mist... Yeah It's back'. It'll be a great way to get people in the seats!

I like "Remember The Signs" and one I thought of was "Many come down and few return"

I like "Remember the Signs", but not sure how marketable that would be. Doesn't sound cliche enough. lol Which is a good thing though, right?
If they did "Follow/Remember the Signs", they could do some kind of viral marketing campaign that involves fans looking for "signs" to unlock new content and etc. Not sure if Narnia is that popular to garner that, but I think that would be a cool way of trying to make Narnia feel fresh and exciting again.

"Many come down and few return" sounds like a great tag line to put in a trailer. Not sure if it would be one to put on the poster.

As long as it's not something dumb like "Return to Narnia!... again" or "Everything is about to change".

Wow, SC has a lot of really great lines that could be used in the movie. Just hope the script writer(s) decide to include those lines.

"The Unfathomable Fate Returns"

*hands over ears* (or should that be eyes? ) NEVER, Reepicheep.

I like Remember the Signs, and agree that "Many fall down and few return" would be wonderful for a trailer. Of course, GlumPuddle's suggestion has a certain ring to it, as well.

A longer sort of tagline which might be better for the trailers as well, would be "In the name of Aslan".

Great, now who do we contact to officially request it?

You could contact the Executive Producer Mr Gresham.