Directed by Clint Eastwood, the 2018 crime drama The Mule marked Eastwood's first starring role in six years, and the film ends on an introspective note. The slow-burning narrative revolves around Earl Stone (Eastwood), an aged Korean War veteran and horticulturist who accidentally becomes a mule for a drug cartel. Eastwood was joined by a cast including his American Sniper co-star Bradley Cooper, Andy García, and Michael Peña. While The Mule wasn’t as praised as heavily as other movies that Eastwood directed, it still became a box-office hit.

https://screenrant.com/the-mule-ending-explained/