Midsommer (2019) is an interesting and gloriously styled film that, despite running to nearly three hours, holds your attention with a clever blend of beautifully shot scenes, tense atmosphere and never-entirely-sure-what’s-coming-next storyline. Dani has problems and issues. Her sister commits suicide at the beginning of the film, taking both their parents with her. That, together with being in a relationship with Christian, a man who seems not to know…