Universal’s “Oblivion” didn’t exactly roar into theaters Friday, nor did it crater.

The Tom Cruise-starrer was on track for an estimated $13 million for the day and a healthy $35.5 million weekend, according to early estimates.

After earning $1.1 million Thursday night, B.O. observers feared the original sci-fier would take a hit from the drama unfolding in Boston, which accounts for roughly 2% of the nation’s market.

But on Friday evening, as the marathon bombing suspect was surrounded and eventually caught in Watertown, Mass., the early numbers began rolling in and execs at U sighed in relief: Auds nationwide were indeed on board for the $125 million film.

Directed by Joseph Kosinski (“Tron: Legacy) and starring Cruise and Morgan Freeman, “Oblivion” has already earned $75 million overseas and reps the biggest domestic opening for Cruise since 2006’s “Mission: Impossible III.”

“Oblivion,” produced by Kosinski, Peter Chernin and Radical Studios, will have two weeks of clear playing time before Disney launches “Iron Man 3″ domestically on May 3.

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Pic is the first release in what should be a busy summer for U.

The studio bows “Fast and the Furious 6” next month, Ryan Reynolds-starrer “R.I.P.D.” in late June while animated sequel “Despicable Me 2” arrives July 3.