Best two reviews:
1) The Hollywood Reporter - Mary Shelley is a luscious-looking spectacle, drenched in the colors and visceral sensations of nature, the sensuality of young lovers, the passionate disappointment of loss and betrayal. But above all it is a film about ideas that breaks out of the well-worn mold of period drama (partly, anyway) by reaching deeply into the mind of the extraordinary woman who wrote the Gothic evergreen Frankenstein. (Rating: 80) Read Full Review >
2) Screen International - Mary Shelley is ultimately the story of a woman finding her own voice and asserting her independence and that will be the heart of its appeal. (Rating: 70) Read Full Review >

Worst two reviews:
8) CineVue - Mary Shelley is a film at relentless pains to tell us how poetic and ethereal its heroine is, but without remotely grasping the political and philosophical underpinnings of her work. (Rating: 40) Read Full Review >
9) The Playlist - A film desperately in need of an electric charge, Mary Shelley is simply another cinematic corpse on the table. (Rating: 25) Read Full Review >