Kumail Nanjiani as Kumail and Zoe Kazan as Emily in "The Big Sick" (Credit: Photo courtesy of Amazon Studios) “The Big Sick,” which played this week at BamcinemaFest and will be in wide release next month, is a film that evokes a great number of feelings. For me, one was déjà vu. Written by and starring Kumail Nanjiani (of “Silicon Valley”), “The Big Sick” is about a forbidden romance.