Stopwatch (2011)

When a popular science teacher dies suddenly, Framingham High School students are devastated. At the funeral, Zach steals the urn, which contains both the ashes and (unbeknownst to him) Dr. Barkley's treasured gold pocket watch that can stop time. Zach and fellow students Alex and Erik meet to scatter the ashes in the Sudbury River, and while his friends' backs are turned, Zach is abducted by aliens who are seeking the watch. Will Alex and Erik discover the powers of the watch in time to rescue Zach from the clutches of the treacherous Commander Murnk and save the lives of the watch's inventors? Of course they will!