Six films to watch this week

Julianne Moore stars in ‘Echo Valley’, a twisty thriller with echoes of Hitchcock; the samurai Western comes to Georgian Britain in ‘Tornado’; a single mother takes on Social Services in ‘Lollipop’; ‘How to Train Your Dragon’ remake struggles to match the original; choreographed mayhem in John Wick spin-off ‘Ballerina’; ‘The Encampments’ documents pro-Palestine protests at Columbia University — reviews by Danny Leigh and Jonathan Romney