Vidgame classic “Doom” reaches the bigscreen this weekend as Universal release its adaptation starring Dwayne “the Rock” Johnson at 3,042 theaters. The movie is expected to lead another crowded field of fresh films. Also opening over the frame are Warner Bros.’ Charlize Theron starrer “North Country,” bowing at 2,555; DreamWorks’ Kurt Russell and Dakota Fanning family movie “Dreamer,” at 1,800; and New Regency and 20th Century Fox’s thriller “Stay,” starring Ewan McGregor, which debuts with 1,684. In the specialty realm this weekend, George Clooney’s “Good Night, and Good Luck” will be tested by its first major expansion as Warner Independent Pictures moves it to 225 screens. While industry expectations are for “Doom” to post a loftier opening than has been seen in recent weeks, the upcoming frame will have a tough time topping last year’s totals, when the $39.1 million bow of “The Grudge” contributed to $106 million in overall box office.