In North America, the film had the highest per-screen and per-theater gross in 2007. It was released on July 3, 2007, with 8 p.m. preview screenings on July 2. The U.S. previews earned $8.8 million, and in its first day of general release it grossed $27.8 million, a record for Tuesday box-office gross until broken by The Amazing Spider-Man in 2012. It did, however, break Spider-Man 2 ’s record for the biggest July 4 gross, making $29 million. Transformers opened in over 4,050 theaters in North America, grossed $70.5 million in its first weekend, amounting to a $155.4 million opening week, giving it the record for the biggest opening week for a non-sequel. The opening’s gross in the United States was 50 percent more than Paramount Pictures expected. One executive attributed it to word of mouth that explained to parents that “it [was] OK to take the kids”. A CinemaScore poll indicated the film was most popular with children and parents, including older women, and attracted many African American and Latino viewers. Transformers ended its theatrical run in the United States and Canada with a gross of $319.2 million, making it the third highest-grossing film of 2007 in these regions behind Spider-Man 3 and Shrek the Third.