Overview
The Strongest Man in the World is a 1975 American science fiction comedy film directed by Vincent McEveety, produced by Walt Disney Productions, and starring Kurt Russell, Joe Flynn (in his first of two posthumous roles) and Eve Arden. It was the third and final film in Dexter Riley series.
Plot
Medfield College's Dean Higgins (Joe Flynn) is about to be fired for financial mismanagement due to extreme overspending by Prof. Quigley's (William Schallert) science class. Higgins finds out the high costs are for renting a cow as a test subject; they are feeding it various concoctions to make it fatter. In a rage, Higgins fires Quigley then threatens to have his entire class thrown out of college. When the dean slams the door as he leaves, Dexter Riley's (Kurt Russell) chemical experiment mixes with that of another student, Richard Schuyler's (Michael McGreevey) vitamin cereal mix.
When the cow eats some of the cereal into which the mixture has leaked, the students learn that the cereal gave the cow the ability to produce a huge supply of milk, over 80 gallons. When Dexter eats it the next morning he gains super-strength, as does the fraternity house's pet dog.
Dexter shows the dean and Quigley his super-strength by picking up an obese kid in a chair with the right hand and Schuyler with the left. Higgins jumps on this as an opportunity to get Medfield out of its financial slump and keep the Board of Regents from firing him. Higgins takes the formula-laced cereal to the board of the Crumply Crunch cereal company and demonstrates its effects to the board and its president, Aunt Harriet Crumply (Eve Arden). They decide to advertise the powers of the formula-laced cereal by challenging Krinkle Krunch, a rival cereal company run by Mr. Kirwood Krinkle (Phil Silvers), to a competition between their sponsored weight-lifting team and Medfield's to see which cereal can give the other greater strength. Krinkle sponsors the well-funded State College.
From Wikipedia (CC BY-SA 4.0).