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ET has learned that Saturday night's premiere of Tom Cruise's new movie Jack Reacher has been postponed out of respect for the families of the victims of Friday's elementary school shooting tragedy. Another premiere -- for the Billy Crystal/Bette Midler comedy Parental Guidance -- was canceled on Saturday.

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Paramount Pictures said in a statement Friday evening, "Due to the terrible tragedy in Newtown Connecticut, and out of honor and respect for the families of the victims whose lives were senselessly taken, we are postponing tomorrow's Pittsburgh premiere of Jack Reacher. Our hearts go out to all those who lost loved ones."

On Saturday, 20th Century Fox said in a statement, "In light of the horrific tragedy in Newtown, Connecticut we are canceling the red carpet press event and the after party for the Parental Guidance premiere, scheduled today in downtown Los Angeles. The hearts of all involved with this film go out to the victims, their families, their community, and our entire nation in mourning."

Stay tuned to ET for the latest developments on the Connecticut shooting tragedy.