‘‘Iron Man 3’’ was the heavy lifter at theaters with a colossal overseas debut that overshadowed a gang of mercenary bodybuilders in a sleepy presummer weekend at the domestic box office. The Marvel Studios superhero sequel, starring Robert Downey Jr. and opening in Boston this week, got a head start on its domestic launch Friday with a $195.3 million opening in 42 overseas markets, distributor Disney reported Sunday. That topped the $185.1 million start for Marvel’s ‘‘The Avengers,’’ which opened in 39 markets over the same weekend last year a week ahead of its record-breaking domestic debut of $207.4 million. Director Michael Bay’s ‘‘Pain & Gain,’’ a true-crime tale of bodybuilders on the make, muscled into first-place domestically with a $20 million debut. The film starring Mark Wahlberg, Dwayne Johnson, and Anthony Mackie knocked off Tom Cruise’s sci-fi adventure ‘‘Oblivion’’ after a week in the No. 1 spot. Universal’s ‘‘Oblivion’’ slipped to second-place with $17.4 million, raising its domestic total to $64.7 million. Lionsgate’s all-star nuptial comedy ‘‘The Big Wedding’’ tanked at No. 4 with just $7.5 million.
“Welcome to Echo Park, a neighborhood that’s always coming up — and I’m glad you’re here to welcome an up-and-coming band.” — Mick Jagger, to an A-list crowd during a small Rolling Stones show at Echoplex in Los Angeles on Saturday.