Currently Being ModeratedAug 30, 2013 12:17 PM (in response to nermun)
Thanks for visiting Apple Support Communities.
Here's how to delete a movie from iTunes on an iPhone, from the iPhone User Guide:
Delete a video: Swipe left or right over the video in the list. Deleting a video (other than a rented movie) from iPhone doesn’t delete it from your iTunes library.
All the best,