I actually don't know about London itself... I do remember once visiting London Met to see about a Film Studies course... but decided it wasn't for me.
I actually went to
Bournemouth University's Media School to do my MA in Film Editing.... I can tell you the quality of the BA Film courses is excellent. Basically you've got everything in one roof, all the other courses are encouraged to interact with each other, so if you do their BA Media Production course and you're doing a big film shoot and you need a special effect.... you go to the MA Visual Effects course and poach someone, you need an editor... you go see the MA Film Editors (which I was one of) so I've helped loads of undergrads with their projects.
As I recall, the BA TV Production course teaches everything from using cameras, lighting, editing, framing, film styles the lot and I can tell you that most of the companies I've worked with in London most have been to Bournemouth uni so I'd definitely recommend checking that out.