All of these statements are false. change the adjectives of nationality to make them true.

The correct change of the adjectives in the sentences is:

1. Antonio Banderas y Penélope Cruz son españoles.

2. Una persona de Ecuador es ecuatoriana.

3. Celine Dion y Mike Myers son canadienses.

4. Salma Hayek es mexicana.

5. Los habitantes de Puerto Rico son puertorriqueños.

6. David Beckham es inglés.

Explanation:

The people named in the sentences are actors, sportsmen, singers, cinema directors or some nationality, in the case of the famous people is easy to identify their country, but in the case of the nationality below is explained:

1. Antonio Banderas and Penélope Cruz are from Spain, then their nationality in Spanish is "españoles", because this is in plural form.

2. The nationality from Ecuador is "ecuatoriano" or "ecuatoriana" in Spanish, but how 'persona' is a female noun, the correct is the second form showed.

3. Celine Dion and Mike Myers are from Canada, then their nationality is "canadienses" in Spanish and plural form.

4. Salma Hayek is from Mexico, then her nationality is "mexicana" in Spanish, female and singular form.

5. The people from Puerto Rico are "puertorriqueños", you must duplicate de consonant 'r'.

6. David Beckam is from England, their nationality in Spanish would be "inglés", in singular and male form.