Caddyshack

Carl Spackler was originally a silent character in the script, in the manner of Harpo Marx, but after Bill Murray was cast, Harold Ramis encouraged Murray to speak and improvise.

While Danny making that last putt effectively tied the game, meaning neither team lost or won, - Al's last-second bet of "Double or nothing he makes it" essentially negates the original bet and creates a new one. Judge Smails agrees to this new wager, (which is not a smart move since he already has tied the game, and may even win if Danny misses) so when Danny makes the putt, Al wins NOTHING, per Al's "double or NOTHING" new bet. Al then forces Smails to pay up even though he really didn't owe any money.

Mr. Gopher - Chuck Rodent

The candy bar scene was replaced with Ty getting on Carl's big lawnmower, which wasn't shown in the theatrical version.