Six films to watch this week

‘Spinal Tap II: The End Continues’ relives the comically earnest tone of the original; ‘Downton Abbey: The Grand Finale’ is a big-screen nostalgia fest; Stephen King adaptation ‘The Long Walk’ depicts endurance tests in a broken America; ‘The Man in My Basement’ offers chills and thrills with Willem Dafoe; ‘From Ground Zero’ is a collage of short films documenting lives under fire in Gaza; Denzel Washington heads the cast of Spike Lee’s Kurosawa remake ‘Highest 2 Lowest’ — reviews by Danny Leigh