As HDRips, R6 releases, WEBRips and Retail releases usually arrive before R5 releases, the page will concentrate on the prior release dates instead, so if you have any then post them in the comments!
iTunes Release Dates (USA)
Tinker Bell and the Legend of the NeverBeast – 3rd March 2015
Life Partners – 3rd March 2015
Loitering with Intent – 3rd March 2015
Beyond the Lights – 1st April 2015
Extraterrestrial – 1st June 2015
Camp X-Ray – 1st June 2015
Inner Demons – 8th September 2015
Updated: 12th March 2015 – old dates removed!