Watch Out, We're Mad! (...altrimenti ci arrabbiamo!)

Marcello Fondato directed Watch Out, We're Mad! (in Italian ...altrimenti ci arrabbiamo!), an action comedy made in 1974 as an Italian-Spanish production. It is the eighth of the 17 films Bud Spencer and Terence Hill made together, and counts, along with the spaghetti western They Call Me Trinity, among the duo's best-known work. In Spanish it was called Y si no, nos enfadamos, and in Germany Zwei wie Pech und Schwefel.

Two rival racing drivers win joint ownership of a red dune buggy as a race prize and cannot agree who should keep it. When the buggy is wrecked on the orders of a crooked profiteer, they demand a replacement and warn that otherwise they will get angry. The boss sends thugs after them, then a hired killer, but all are beaten up. Now genuinely furious, the two wreck the man's restaurant, and he finally has to hand each of them a new red car. Patty Shepard, John Sharp and Donald Pleasence also appear.

Shot mainly in Rome and Madrid, it was co-produced by Italy's Capital Film and Spain's Filmayer, with a score by the De Angelis brothers, known as Oliver Onions. Many of the cast are Spanish, among them Luis Barbero, Emilio Laguna and Manuel de Blas.