Maggi Ajjayya, Kottur’s “Computer Man,” amazes social media with lightning-fast mental math. Despite only studying till 8th grade and surviving by begging, his calculation tricks have gone viral.

The Hearst Movie & A Martini group responded to “The Man Who Knew Infinity” much more favorably than most of the critics did. The would-be prestige hit about an Indian mathematics genius (Dev Patel), ...