Plot It’s the 1970s, and Scottish medic Nicholas Garrigan (McAvoy) heads to Uganda to help the poverty-stricken locals. Soon he finds himself Idi Amin’s (Whitaker) personal physician. But his charmed existence turns sour as the reality of the tyrant’s murderous regime becomes apparent. Verdict Both an enthralling examination of a horrific time and an adrenalin-filled thriller full of wry humour.