"Avengers: Age of Ultron" kicked off the summer movie blockbuster season with a huge debut of $187.7 million, the second highest opening weekend in history.

Another debut, "Age of Adaline", came in second with an estimated $6.25 million, and "Furious 7" dropped from first to third with $6.1 million.

"Paul Blart: Mall Cop 2" finished fourth with $5.5 million, and "Home" rounded out the top five with $3.3 million.

Figures courtesy of Boxofficemojo.com.