Warning: There are minor spoilers ahead for “The Grinch.” Universal’s remake of “The Grinch” is now in theatres and it’s a relevant and much-needed update to the 1966 animated classic starring Benedict Cumberbatch as the meanie who despises Christmas and the Whos in Whoville who celebrate it. INSIDER spoke with directors Scott Mosier and Yarrow Cheney some of the film’s updates, and where the green guy seems to get his unlimited cash flow from. Kirsten Acuna: How did both of you become involved with ‘The Grinch”? Why this movie and story, which has been told before?Scott Mosier: I grew up reading the book, and, of course, the Chuck Jones special [I] watched every year with my family. I’ve always been a fan of, also, Dr. Seuss and all of his books and his worlds, and I was approached by Chris Meledandri, who runs Illumination, and he sort of surprised me at a lunch meeting, and he was like, ‘I’m thinking about this movie that I think you’d be great for,’ and he showed me a drawing by Yarrow that he had done of the Grinch, and I was like, “Yes!” It was a mixture of excitement and fear. Excitement over…