When Holmes first meets Balwani in the kitchen, she takes her Cup O'Noodles out of the microwave and they comment on it. As he's leaving the room, she takes the same soup out of the microwave for the second time.
In a bookcase in the Holmes family home in late 2001, there's a copy of Randall Munroe's book "What If". That book was not published until 2014.
The copy of Elizabeth's invention write-up that she shows to people is actually clearly just a copy of her printed U.S. Patent No. 7,635,594, which didn't issue until December 22, 2009. The printed version of the patent did not exist until that issue date.