Danny Dyer is in Severance which is a very good film.
It's by Christopher Smith a young British director who seems pretty unkown considering every film he's made is very good (Black Death, Triangle ,Creep)
He's like a less 'arty' (and much better) Ben Wheatley
I really like a lot of films in this thread (Inception, Solaris, 2001, Public Enemies).
I think the worst films i've seen are:
Sharknado
Tree of Life
Sex and the City 2
Transformers