The North American opening of Mission: Impossible 2 has broken a raft of box office records across its Memorial weekend debut, grossing an estimated six-day figure of $92.8m from Wednesday June 24 to Monday June 29.

In the traditional four-day Memorial slot, the John Woo directed blockbuster raked in around $71m - only beaten by The Lost World: Jurassic Park's $90.2m in 1997 - but if predictions are confirmed this will propel the holiday weekend to an estimated all-time high of $170m.

The original Mission: Impossible, released on the same bank holiday weekend in 1996, collected $56.8m in its first four days with a six-day total of $74.9m before finishing with $181m.

Cinema-goers across the US and Canada piled into theatres as Dinosaur, Gladiator and Road Trip held over spectacularly well and new release Shanghai Noon starring Jackie Chan pulled in $19.5m over the four days. Dinosaur's gross of $33.5m gave it second place in the chart, with Gladiator at fourth with $17.3m and Road Trip at five with $14m.

M:I2's Friday to Sunday span pulled in $57.8m - the highest ever for producers Paramount Pictures and a personal best for Mission's lead actor Tom Cruise - making it the third highest three-day figure after The Lost World ($72.1m) and Star Wars: Episode One - The Phantom Menace ($64.8m).