"The Hobbit: An Unexpected Journey" hauled in nearly $37 million from theaters in the United States and Canada, according to studio estimates of Friday-through-Sunday ticket sales. The film is the first of three movies based on the classic J.R.R. Tolkien novel about a world of dwarfs, elves and dragons in the fictitious Middle Earth.

In second place, Cruise's "Jack Reacher" about the investigation into a sniper shooting brought in just short of $17 million at U.S. and Canadian theaters. Distributor Paramount Pictures postponed a premiere of the film after the fatal school shooting in Newtown, Connecticut, sparked new scrutiny of violent movies.

Adult comedy "This is 40," starring Paul Rudd and Leslie Mann as a middle-aged couple, brought in $12 million, finishing in third place.

"The Hobbit" was distributed by Time Warner Inc's Warner Bros. studio. Paramount Pictures, a unit of Viacom Inc, released "Jack Reacher." Comcast Corp's Universal Pictures distributed "This is 40."

(Reporting By Lisa Richwine and Andrea Burzynski)

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