Deliberate mistake: While done for comedic effect, the ram's penis as we see it is not what a real one looks like, most noticeably is the missing urethral process.
A Million Ways to Die in the West (2014)
1 deliberate mistake - chronological order
Directed by: Seth MacFarlane
Starring: Liam Neeson, Charlize Theron, Amanda Seyfried, Neil Patrick Harris, Seth MacFarlane
Continuity mistake: When Clinch and his gang start to chase Albert, from his house, many of the sheep start running and moving out of the way, even kicking up dust. When the camera angle changes, none of the sheep are moving and there's no kicked up dust.
Trivia: While talking to the Native Americans, Albert says "Mila Kunis", which translates into "fine." Mila Kunis is the actress who voices Meg in Family Guy.