The story of BlackBerry's rise and fall is as irresistible as the so-called CrackBerry was upon its debut in 1996, according to audiences and critics alike, who give the new BlackBerry film 94% and 98% ratings on Rotten Tomatoes respectively. Director and co-writer Matt Johnson also stars as Doug Fregin, one half of a nerdy creator duo completed by Mike Lazaridis, played by Jay Baruchel. They team up with Jim Balsillie, played by Glenn Howerton of It's Always Sunny in Philadelphia fame, to sell an all-in-one phone, pager, camera, and email device they've dreamed up in Canada in a move that changes everything. Here's what critics are saying: