How do you legally watch the full "Diary of a Wimpy Kid: Dog Days" movie?

MGO.com and Apple iTunes are some legal video streaming services that offer the movie, “Diary of a Wimpy Kid: Dog Days.” Apple iTunes offers the film for digital purchase, while MGO.com offers the film for purchase and as a rental. Amazon.com also provides the film digitally and allows users to purchase the film on DVD and Blu-ray. As of 2016, MGO.com allows a rental viewing of 48 hours, while Amazon.com only offers 24 hours after its initial play.

“Diary of a Wimpy Kid: Dog Days” is a comedy film directed by David Bowers that stars Zachary Gordon and Steve Zahn. The film is the third installment of the “Diary of a Wimpy Kid” film series and is also considered its final movie, as of 2016. In 2012, it officially released in the United States, earning an estimated $77 million at the box office.

The film begins with the Heffley family attending a pool party and later meeting a former trouble-making child named, Rodrick. The family soon learns that Rodrick is now a well-behaved student after he attended a military school. This then gives Frank Heffley the idea to send his son, Greg Heffley, to military school if he does not begin to stay out of trouble.