Even the sharpened Valyrian steel of Jon Snow won't be mighty enough to take apart these plastic bricks.

"Game of Thrones" star Kit Harrington has his 3D volcanic disaster movie "Pompeii" new in theaters, but the man who wields Longclaw on the HBO series will be no match for two-time champion "The LEGO Movie." Big star power, great reviews, strong word of mouth, brand awareness and a family friendly premise have driven "The LEGO Movie" to $150 million at the domestic box office already, with industry analysts projecting around $35 million for its third weekend.

Entertainment Weekly's weekend prediction was even higher -- $10 million higher. Whether that happens remains to be seen, but what appears to be certain is that "Pompeii" won't come anywhere close. Set in 79 A.D., "Pompeii" was directed by "Resident Evil" franchise workhorse Paul W.S. Anderson and puts Harrington alongside Kiefer Sutherland, Emily Browning ("Sucker Punch"), Adewale Akinnuoye-Agbaje ("Thor: The Dark World") and Carrie-Anne Moss ("The Matrix").

Last weekend's '80s remake holdovers "About Last Night" (starring Kevin Hart) and "Robocop" should stick around the Top 5, with George Clooney's "The Monuments Men" and newcomers "Pompeii" and "3 Days to Kill" all jockeying for position. Each of these films is likely to make between $10 and $12 million each. "The Monuments Men" is already the highest grossing movie with Clooney in the director's chair, with nearly $50 million domestically thus far.

The action thriller "3 Days to Kill" was produced and cowritten by Luc Besson ("The Professional"), and stars veteran actor Kevin Costner in the lead role. Costner has gotten a career boost from last year's "Man of Steel"; his latest is directed by McG, who once upon was long attached to the "Superman" reboot. "3 Days to Kill" costars Hailee Steinfeld and Amber Heard were both last seen alongside Harrison Ford, in "Ender's Game" and "Paranoia," respectively. (Heard, of course, can also be seen in a headline making photo spread in the March issue of Vanity Fair). Neither "3 Days to Kill" nor "Pompeii" have fared well with film critics.

"In Secret," starring Elizabeth Olsen and Oscar Isaac, opens in limited release (about 250 theaters). Hayao Miyazaki's Academy Award nominated "The Wind Rises" (with American audience friendly voice performances from Joseph Gordon-Levitt, John Krasinski and Emily Blunt) will be in 21 theaters.