Steve Carell and Jim Carrey play Burt Wonderstone and Steve Gray respectively. This is the third film in which Carrey and Carell starred alongside another, after 2003's Bruce Almighty and 2008's Horton Hears a Who!.
As Brian68 mentioned voice and text does not count as data. Voice and text usage will deduct from your voice and message plan only. Yes, you can turn off data and make/send & receive calls and text. The wifi data usage concern has been addressed by the ios6 update. Please let me know if you need any additional assistance.
Any replies from iOS devices will show up in the iMessage conversation thread, while replies from non-Apple devices will show up as separate text messages. Any SMS or MMS message will count as an ordinary text message and will not use data.