Viva Max!
Viva Max! is a 1969 comedy film starring Peter Ustinov, Jonathan Winters and John Astin, directed by Jerry Paris. The film was written by Elliott Baker and based on a 1966 novel by Jim Lehrer.
Plot
Riding a white horse, Brigadier General Maximilian Rodrigues de Santos of the army of Mexico arrives at a United States border crossing with a small company of soldiers on foot. He claims to be leading his men to Laredo, Texas to march in a parade on George Washington's birthday.
The soldiers' destination is actually San Antonio, where the general intends to carry out a quixotic mission to "re-occupy" the Alamo. None of his men are aware of his plans, but without argument they do whatever they are told by Max's devoted Sergeant Valdez.
Disguising himself in an ill-fitting suit as a tourist, Max goes on ahead and takes a guided tour of the Alamo. In the gift shop, he encounters an attractive young blonde, Paula, who, when she isn't selling postcards, is a radical student activist.
He returns to his men and, after racing through the streets of San Antonio, they seize control of the fort, taking Paula and two other Americans as their prisoners. Max places a call to the local authorities, telling police chief Sylvester that the flag of Mexico now flies above this piece of hallowed Texas ground.