What are "effort sounds" in an animated film? Especially when you're playing Mario, Luigi, or Donkey Kong? The Super Mario Bros Movie stars Chris Pratt, Charlie Day, and Seth Rogen sat down with Mashable's UK Editor Shannon Connellan and reporter Ty Cole to talk about how to reassure young audiences with sound effects, who their go-to Mario Kart players are, and the specific lines that get them into character.
