http://www.boxoffice.com/daily_analyses/2012-07-the-amazing-spider-man-spins-1-debut

The Amazing Spider-Man spun an estimated $65 million over the three-day weekend.  That puts the reboot’s total at an estimated $140 million after six days in release.  44% of the weekend gross came from 3D venues, including 10% from IMAX.  If the three-day estimate holds it will give the film the fourth highest Independence Day weekend opening behindTransformers: Dark of the Moon’s $97.9 million, Spider-Man 2′s $88.2 million and the first Transformers’ $70.5 million (the latter being the most relevant due to the calendar falling on the same dates in 2007).