Johnny Depp owns a flat on the Royal Cresent as well, never seen him out and about though.
Depp's fond of disguises though, so you might have seen him and not realized it.
I generally like Cage's work, and I think he did well in Knowing.
It's the only film of his I currently have, and I'd bought it because I saw Alex Proyas' name on it. But the script is a mess though it tries to deal with similar themes as the Rapture films.
The Left Behind series might work for mainstream audiences if it were played like that The Prophecy
series with Christopher Walken.