LOS ANGELES (AFP) - Disney's "Zootopia" bounced its way to US$73.7 million (S$101.28 million) in its US opening weekend, a record-setting box office debut for Disney Animation Studios, industry estimates showed Sunday.

The film about intrepid rabbit police officer Judy Hopps who works with a fox to solve a crime in the Zootopia animal kingdom topped the US$67.4 million opening weekend take for 2013 Disney blockbuster Frozen.

Analysts said Zootopia was helped by very positive reviews as well as the relative lack of other family films currently in theatres.

Action thriller London Has Fallen was a distant second, earning US$21.7 million in its opening weekend, according to the estimates from industry tracker Exhibitor Relations said. Directed by Iranian-Swedish filmmaker Babak Najafi and starring Gerard Butler, Aaron Eckhart and Morgan Freeman, the film is the sequel to 2013's Olympus Has Fallen.

Superhero blockbuster Deadpool dropped to the third spot with US$16.4 million, contributing to its US$311.2 million take over four weeks. Starring Ryan Reynolds as a foul-mouthed Marvel anti-hero, Deadpool clocked the fastest rise of any R-rated movie in history following its debut.

"Whiskey Tango Foxtrot" was in fourth place after its opening weekend, earning US$7.6 million. The comedy starring Tina Fey was based on Kim Barker's memoir of being a female war reporter in Afghanistan and Pakistan.

Falling from the second spot to fifth, Gods of Egypt, which also stars Butler, took US$5 million in its second week. With a production budget of US$140 million, it was on track to be the year's first flop.

Rounding out the rest of the top 10 were: - Risen, US$3.9 million - Kung Fu Panda 3," US$3.6 million - The Revenant, US$3.3 million - Eddie the Eagle, US$3.1 million - The Witch, US$2.5 million.