WWE has confirmed that in recalculating numbers for Wrestlemania 27, the show actually drew 1,120,000 buys. It had been originally reported as doing 1,059,000 buys. 663,000 of the buys were domestic. This would make it the second most purchased Wrestlemania of all time just behind Wrestlemania 23 in 2007 that drew 1,250,000 buys.
Sources: WWE, The Wrestling Observer Newsletter