NEW YORK (AP) -- Melissa McCarthy notched her first No. 1 weekend box-office debut as a leading lady with the $30 million opening of her espionage comedy "Spy."

Melissa McCarthy, as Susan Cooper, a CIA analyst, who volunteers to go deep undercover to infiltrate the world of a deadly arms dealer, and prevent a global disaster, in a scene from the film, "Spy."
Melissa McCarthy, as Susan Cooper, a CIA analyst, who volunteers to go deep undercover to infiltrate the world of a deadly arms dealer, and prevent a global disaster, in a scene from the film, "Spy." (Larry Horricks/Twentieth Century Fox via AP)
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According to studio estimates Sunday, McCarthy's latest film with director Paul Feig bested a varied field of action, horror and a resurrected HBO series. Last week's top film, "San Andreas," the disaster movie starring Dwayne Johnson, slid to second place with $26.4 million.

"Insidious: Chapter 3" opened with an estimated $23 million, a strong debut for the low-budget horror prequel.

But HBO's "Entourage" failed to compete with any of those releases. It made $10.4 million over the weekend and has brought in a five-day total of $17.8 million since opening Wednesday.

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