Marty Cooper is a talented animator who has created a series of animated shorts that combine traditional cel animation with iPhone photos. He uses the cel animation to create characters that interact with the background and foreground in his photos by using transparent layers. The resulting shorts, titled Aug(De)Mented Reality, are highly creative and quite amusing. Here is a collection of shorts he released in early 2014:

Here is a recently released sequel (and against all rules of sequels, I think it is better than the original):

Many of his animated clips can be found on Instagram or his Tumblr.