Jeff Nichols’ Huck Finn-like tale of life on the muddy Mississippi winds its way along the equally murky Thames to deliver an acclaimed indie drama to Sundance London crowds a couple of weeks before its full UK release. So what can viewers expect? Firstly, one of Matthew McConaughey’s best performances in an increasingly stellar career renaissance. Southern-fried drama is also on the menu, as is a return to Sundance from Nichols himself, whose Take Shelter pulled up stumps at Sundance, Utah in 2011. There will probably the odd nod to Mark Twain too. Trust us, it’s the catfish’s whiskers.